Iowa (album)

"Disasterpiece" redirects here. For the video album by Slipknot, see Disasterpieces. For the musician, see Disasterpeace.

Iowa is the second studio album by the American heavy metal band Slipknot. Produced by the members and Ross Robinson, it was released on August 28, 2001, by Roadrunner Records. The title refers the band's state origin, Iowa, which members have stated is one of their greatest sources of inspiration. With much anticipation for the album following the success of their 1999 self-titled debut, pressures on the band were high. Their relationships with each other suffered and this was later described as the darkest time of their career.^[6] It was also the first full album to feature guitarist Jim Root after only appearing on one song from their previous album. Despite troubles within the band and with Iowa's development, Slipknot promoted it for almost a year.

Iowa
Studio album by Slipknot
Released	August 28, 2001 (2001-08-28)
Recorded	January 22, 2001 – March 16, 2001
Studio	Sound City and Sound Image (Van Nuys, California)
Genre	Nu metal[1][2][3] groove metal[4]
Length	66:17
Label	Roadrunner
Producer	Slipknot Ross Robinson
Slipknot chronology
Slipknot (1999) Iowa (2001) Vol. 3: (The Subliminal Verses) (2004)
Singles from Iowa
"Left Behind" Released: October 29, 2001 "My Plague" Released: July 8, 2002
Alternative cover one
Cover for some versions of Iowa.
Alternative cover two
Cover for the 10th anniversary re-release of Iowa.
Alternative cover three
Cover for some limited editions in Europe, Australia and Japan[5] of Iowa.

The album was a major success, premiering in the top tens of nine countries. Generally positively received, it includes some of their notable songs, such as "Disasterpiece", "The Heretic Anthem", "People = Shit" and the Grammy-nominated "Left Behind" and "My Plague". More technical than their debut, Iowa is considered the band's heaviest and darkest album. It has been certified platinum in the United Kingdom, the United States and Canada.

A special edition of Iowa was reissued on November 1, 2011, to celebrate its tenth anniversary. It was accompanied by full live audio of the hit DVD Disasterpieces and a film entitled Goat directed by Shawn Crahan, with the four music videos, never-seen-before interviews and footage from the Iowa period.^[7]

Recording and production

Iowa was recorded and produced at Sound City Studios and Sound Image Studios in Los Angeles, California with producer Ross Robinson, who had also produced their debut album.^[8] Drummer Joey Jordison and bassist Paul Gray began working on new music together in October 2000, and wrote material for most of the album.^[9] During this time, other members took a break after the extensive touring that had followed their debut.^[9] On January 17, 2001, Slipknot entered the studio to begin recording new material.^[10][11] Recording began on January 22.^[12] This period in the band's career became known as one of their worst. Jordison recalled, "That's where we got into a war," citing the lack of a break for himself and Gray.^[9] Other factors, including vocalist Corey Taylor's alcohol addiction, other members' drug addictions, and management issues affected relations in the band.^[6]

"Recording Iowa was fucking hell," recalled Shawn Crahan. "I wanted to kill myself. There was drugs, bitches, rock 'n' roll, all that shit. People expected so much of us then. 'People = Shit' was our way of saying, 'Fuck off and leave us alone.'" "There was nothing happy about Iowa," confirmed Taylor. "All of a sudden we were these metal stars and we weren't really planning for it… We'd all got caught up in the lifestyle and the problems that come with that. A darkness set in at the beginning of Iowa that none of us quite recognised." Jordison, however, noted, "Iowa, even more than the first record, was the album we really wanted to make."^[13]

It was the first album where guitarist Jim Root had been significantly involved,^[14] after joining during the later recording stages of Slipknot.^[10] During an interview with Guitar magazine in November 2001, Root explained, "It was so exciting as well as scary to be part of this whole huge process," adding that there was a lot of pressure from fellow guitarist Mick Thomson to perform well.^[14]

To FHM, Taylor revealed that he put himself in specific situations to achieve his performance on the album.^[15] While recording vocals for the closing title track, he was completely naked, vomiting all over himself, and cutting himself with broken glass. "That's where the best stuff comes from," he explained. "You've got to break yourself down before you can build something great."^[15] While producing the album, Ross Robinson was injured in a dirt bike accident, suffering a fractured back in the process. He returned to the studio after a day of hospital treatment, reportedly "putting all of his pain into the album", much to the admiration of the band.^[6]

Recording was completed on March 16, 2001.^[16]

Music and lyrical themes

Prior to its release, members promised a much darker and heavier album than Slipknot, and many sources praised the band for fulfilling their promises.^[17] In 2008, percussionist Shawn Crahan recalled: "When we did Iowa, we hated each other. We hated the world; the world hated us."^[18]

Iowa, unlike its predecessor, saw Robinson capturing the band's technicality as opposed to the raw energy which Slipknot became known for.^[19] The band was also praised again for its use of an extended line-up consisting of additional percussionists, turntables, and programmed samples. NME stated that "every possible space is covered in scrawl and cymbals: guitars, percussion, electronic squall, subhuman screaming."^[19] Iowa has also been critically acclaimed as one of the only mainstream musical albums to feature blast beat percussion, and was said to heighten its popularity after release.^[20]

Although Iowa became widely regarded as the band's heaviest album to date, some tracks incorporate melody, most apparent in the record’s singles such as "My Plague" and "Left Behind". During the album's thirteenth anniversary, Revolver recalled that the record is "their most extreme album yet". They compared several songs, namely "Disasterpiece," "People = Shit" and "The Heretic Anthem" as more death metal-influenced than most of the nu metal that the album contained.^[21] While the album does have elements of hip hop music, Iowa has less hip hop elements than Slipknot's self-titled album, and instead draws its influences moreso on heavy genres like death metal and hardcore punk.^[22] The title track is also known for being the band’s longest continuous song released, clocking in at just over 15 minutes.

Iowa follows the lyrical style that vocalist Corey Taylor established on Slipknot's debut; it includes strong use of metaphors to describe dark themes including misanthropy, solipsism, disgust, anger, disaffection, psychosis, and rejection.^[19][23] The album also includes many expletives; David Fricke of the Rolling Stone magazine said "there isn't much shock value left in the words fuck and shit, which Taylor uses in some variation more than forty times in Iowa's sixty-six minutes."^[23] Fricke went on to praise Taylor's performance on the track "Iowa", comparing it to a "vivid evocation of a makeshift-cornfield grave at midnight."^[23]

"Disasterpiece", said Taylor, "is my favorite Slipknot song. We started doing pre-production for the album in a warehouse in Iowa itself. I had laryngitis and couldn't sing a note, so I was writing a lot of ideas down. When I heard them play 'Disasterpiece', I just wrote 'No one is safe' in huge letters. I knew from then that we were going to rip the throat out of the world with 'Disasterpiece'. That was the lynchpin for the whole album."^[13]

Promotion

There was speculation over the title before its announcement with Nine Men, One Mission as the expected title in some sources.^[10] Iowa was later announced as its title and was named after the band's home state of Iowa. Members have claimed that Iowa was the source of their energy, and they consciously made the decision to stay in the area, partially due to the fear of losing their creative direction.^[8] The opening track "(515)" is also a reference to their home state, named after the telephone area code for central Iowa.^[24] Initially the album was scheduled for release on June 19, 2001, and was to be preceded by a five-date warm-up tour.^[25] However, the mixing of the album took longer than anticipated, causing the album's release to be delayed, as well as the cancellation of the tour.^[17][25] The album was officially released on August 28, 2001.^[26] In support of the album, Slipknot began a new tour called the Iowa World Tour. This included: a spot on Ozzfest in 2001,^[27] an American co-headlining tour with System of a Down,^[11] as well as tours in Japan, Europe and elsewhere.^{[28][29][30][31]}

Prior to the album's release, Slipknot gave away copies of "Heretic Song" (titled "The Heretic Anthem" on the retail release), free on their website. It was limited to 666 copies, to match the chorus; "If you're 555, then I'm 666." The giveaway began on May 15, 2001, and lasted until copies sold out.^[32][33] The first official single released from the album was "Left Behind". In 2002, the band made a special appearance in the film Rollerball, in which they performed "I Am Hated".^[32] Following this, a second single from the album was released, "My Plague", which appeared on the soundtrack for the film Resident Evil.^[34]

Critical reception

Professional ratings

Aggregate scores
Source	Rating
Metacritic	68/100[35]
Review scores
Source	Rating
AllMusic	[26]
Alternative Press	[36]
Artistdirect	[37]
Dotmusic	[38]
Entertainment Weekly	C−[39]
Drowned in Sound	7/10[40]
NME	8/10[41]
Playlouder	[42]
Q	[43]
Rolling Stone	[23]

Following the success of the band's self-titled album, author Dick Porter wrote that the anticipation for a follow-up was intense.^[11] Prior to its release, Jordison proclaimed: "Wait till you hear our fuckin' next record. It smokes our first album. The shit's twice as technical, three times as heavy."^[17]

Iowa earned generally favorable reviews.^[35] The College Music Journal reviewed it as "brutal, unrelenting, scorching..."^[44] Many noted its heavy themes: Alternative Press stated, "[It is] like having a plastic bag taped over your head for an hour while Satan uses your scrotum as a speedbag....[It] is over the top… you're going to be left in stitches."^[45] NME said that it is "Exhilarating, brutal and good."^[46] Rolling Stone credited the album for its originality, stating that "nearly everything else in modern doom rock sounds banal."^[47] In its Rock & Roll Yearbook (2001), Rolling Stone declared, "Do not discount the purgative worth of Slipknot's head-spinning riffage and singer Corey Taylor's consumptive growl in 'People = Shit' and 'The Heretic Anthem'. Iowa is the sound of hell boiling over."^[48]

Producer Robinson was praised for his work: Uncut noted, "The barely relenting, tumbling noise attack marshalled by nu metal uber-producer Ross Robinson is expert."^[49] Reviewing for Yahoo!, John Mulvey said, "They're an evolutionary dead end, the final, absolute triumph of nu metal."^[50]

The first single, "Left Behind", was nominated for the 2002 Grammy Award for Best Metal Performance at the 44th Grammy Awards.^[51] The second single, "My Plague", was nominated in 2003 for the same award at the 45th Grammy Awards.^[52] The single "Left Behind" peaked in the top thirty for single sales the United States and the UK.^[53][54] In addition, "My Plague" reached the 43rd position on the UK charts.^[54] Iowa was ranked sixth in the "50 Albums of the year" by NME in 2001.^[46] The album reached the top position on the UK Albums Chart,^[54] and the second spot on the ARIA Charts in Australia.^[55] The album reached the third spot on the Billboard 200^[56] and the Finnish Albums Chart.^[57] On October 10, 2001, the album was certified Platinum in the United States.^[58] In Canada, the Canadian Recording Industry Association certified the album as Platinum, on September 5, 2001.^[59] The British Phonographic Industry has certified the album as Gold in the UK.^[60]

In 2009, Iowa was rated third in UK magazine Kerrang!'s "The 50 Best Albums of the 21st century" reader poll.^[61] Loudwire listed Iowa at number two in their "Top 11 albums of the 2000s" and number six in their "Top 100 albums of the 21st century".^[62][63] In 2017, Rolling Stone ranked Iowa as 50th on their list of 'The 100 Greatest Metal Albums of All Time.'^[64] Later in 2023, the same magazine ranked the album's second song, "People = Shit", number sixty on their list on "The 100 Greatest Heavy Metal Songs".^[65]

Track listing

All music written by Shawn Crahan, Paul Gray, Joey Jordison, Chris Fehn, Mick Thomson, Sid Wilson, Craig Jones and Jim Root except where noted. All lyrics by Corey Taylor except where noted.^[66]

No.	Title	Lyrics	Music	Length
1.	"(515)"	Wilson	Wilson	0:59
2.	"People = Shit"		Jordison	3:35
3.	"Disasterpiece"			5:08
4.	"My Plague"			3:40
5.	"Everything Ends"	Taylor Fehn		4:14
6.	"The Heretic Anthem"		Taylor Gray Jordison	4:13
7.	"Gently"	Crahan	Gray	4:54
8.	"Left Behind"			4:01
9.	"The Shape"			3:37
10.	"I Am Hated"			2:37
11.	"Skin Ticket"		Crahan Grey Jordison Root Taylor Thompson Wilson	6:41
12.	"New Abortion"			3:36
13.	"Metabolic"			3:59
14.	"Iowa"			15:03
Total length:				66:17

Japanese edition bonus track

No.	Title	Length
15.	"Liberate" (Live)	4:25
Total length:		70:42

Japanese edition bonus DVD

No.	Title	Length
1.	"My Plague" (music video)
2.	"Left Behind" (music video)

10th Anniversary edition (bonus track)

No.	Title	Length
15.	"My Plague (New Abuse mix)"	2:59
Total length:		69:16

10th Anniversary edition (disc two) – Disasterpieces (live at London Arena, 2002)

No.	Title	Length
1.	"(515)"	4:04
2.	"People = Shit"	3:36
3.	"Liberate"	3:38
4.	"Left Behind"	3:39
5.	"Eeyore"	2:38
6.	"Disasterpiece"	5:22
7.	"Purity"	5:26
8.	"Gently"	4:36
9.	"Eyeless"	4:57
10.	"Drum Solo"	3:59
11.	"My Plague"	3:47
12.	"New Abortion"	4:22
13.	"The Heretic Anthem"	4:59
14.	"Spit It Out"	7:44
15.	"Wait and Bleed"	3:27
16.	"742617000027"	1:44
17.	"(sic)"	4:22
18.	"Surfacing"	5:34
Total length:		77:54

10th Anniversary edition (disc three) – Goat

No.	Title	Length
1.	"My Plague (music video)"
2.	"Left Behind (music video)"
3.	"The Heretic Anthem (live) (music video)"
4.	"People = Shit (live) (music video)"
5.	"Goat: An hour-long collection of rare footage and interviews"

Personnel

Aside from their real names, members of the band are referred to by numbers zero through eight.^[67]

Slipknot

• (#8) Corey Taylor – lead vocals
• (#7) Mick Thomson – guitars
• (#6) Shawn Crahan – percussion, backing vocals, editing
• (#5) Craig Jones – samplers, media
• (#4) Jim Root – guitars
• (#3) Chris Fehn – percussion, backing vocals
• (#2) Paul Gray – bass, backing vocals
• (#1) Joey Jordison – drums
• (#0) Sid Wilson – turntables, vocals on "(515)"

Production

• Ross Robinson – production
• Mike Fraser – engineering
• Andy Wallace – mixing
• Steve Sisco – assistant engineering
• George Marino – mastering
• Steve Richards – executive producer
• Joey Jordison – mixing, additional vocal production on "My Plague (New Abuse mix)"

Artwork

• Shawn Crahan – creative direction, photography
• T42 Design – art direction, layout
• Joey Jordison – Slipknot logo and Tribal-S logo design
• Stefan Seskis – photography
• Neil Zlozower – band photography

Management

• Monte Conner – A&R
• Steve Ross – assistant manager
• Danny Nozell – tour chief
• Dave Kirby and Neil Warnock – worldwide agents for The Agency Group
• No Name Management – worldwide management

Charts

Weekly charts Chart (2001) Peak position Australian Albums (ARIA)[68] 2 Austrian Albums (Ö3 Austria)[69] 8 Belgian Albums (Ultratop Flanders)[70] 4 Belgian Albums (Ultratop Wallonia)[71] 7 Canadian Albums (Billboard)[72] 1 Danish Albums (Hitlisten)[73] 19 Dutch Albums (Album Top 100)[74] 15 Finnish Albums (Suomen virallinen lista)[75] 3 French Albums (SNEP)[76] 7 German Albums (Offizielle Top 100)[77] 4 Hungarian Albums (MAHASZ)[78] 13 Irish Albums (IRMA)[79] 3 Italian Albums (FIMI)[80] 5 New Zealand Albums (RMNZ)[81] 5 Norwegian Albums (VG-lista)[82] 12 Polish Albums (ZPAV)[83] 7 Scottish Albums (OCC)[84] 1 Spanish Albums (PROMUSICAE)[85] 11 Swedish Albums (Sverigetopplistan)[86] 10 Swiss Albums (Schweizer Hitparade)[87] 13 UK Albums (OCC)[88] 1 UK Rock & Metal Albums (OCC)[89] 1 US Billboard 200[90] 3 Chart (2011) Peak position Japanese Albums (Oricon)[91] 39 Chart (2021) Peak position Portuguese Albums (AFP)[92] 27

Year-end charts Chart (2001) Position Canadian Albums (Nielsen SoundScan)[93] 99 UK Albums (OCC)[94] 128 US Billboard 200[95] 150 Chart (2002) Position Canadian Alternative Albums (Nielsen SoundScan)[96] 158 Canadian Metal Albums (Nielsen SoundScan)[97] 78

Certifications

Region	Certification	Certified units/sales
Australia (ARIA)[98]	Gold	35,000^
Belgium (BEA)[99]	Gold	25,000*
Canada (Music Canada)[59]	Platinum	100,000^
France (SNEP)[100]	Gold	100,000*
Germany (BVMI)[101]	Gold	150,000^
Japan (RIAJ)[102]	Gold	100,000^
Netherlands (NVPI)[103]	Gold	40,000^
United Kingdom (BPI)[104]	Platinum	300,000‡
United States (RIAA)[58]	Platinum	1,000,000^
* Sales figures based on certification alone. ^ Shipments figures based on certification alone. ‡ Sales+streaming figures based on certification alone.

References

1. "Top 50 Best Nu-Metal Albums of All-Time". Loudwire.
2. Richardson, Jake (August 27, 2021). "Slipknot: Every song on Iowa, ranked from worst to best". Kerrang!. Retrieved September 1, 2021.
3. "The 50 best nu metal albums of all time". April 2022.
4. "The Heretic Anthem: Revisiting Slipknot's Unhinged 2001 Album". The New Fury. November 29, 2018.
5. "Slipknot – Iowa". Discogs.
6. "Slipknot 10 years after...". Rocksound. May 2009. pp. 60–65.
7. "Slipknot's Iowa To Be Reissued November 1". Roadrunner. September 28, 2011. Archived from the original on September 30, 2011. Retrieved September 28, 2011.
8. More Maximum Slipknot, The unauthorised biography of Slipknot (Media notes). Chrome Dreams. 2004.
9. "Joey Jordison plunges into Slipknot hell". Drum!. October 2008. pp. 44–45.
10. Arnopp, Jason (2001). Slipknot: Inside the Sickness, Behind the Masks. Ebury. ISBN 0-09-187933-7.
11. Porter, Dick (2003). Rapcore: The Nu-Metal Rap Fusion. London: Plexus. ISBN 0-85965-321-8.
12. "The Sickest is Yet to Come". roadrunnerrecords.com. January 23, 2001. Archived from the original on January 27, 2001. Retrieved May 2, 2024.
13. Bryant, Tom (July 14, 2012). "Hell unleashed". Kerrang #1423. p. 23.
14. "Wrecking crew". Guitar. November 2001.
15. "Slipknot". FHM. December 2001. pp. 76–80.
16. "Updates from the Studio". roadrunnerrecords.com. March 14, 2001. Archived from the original on March 31, 2001. Retrieved May 2, 2024.
17. Udo, Tommy (2002). Brave Nu World. Cromwell. ISBN 1-86074-415-X.
18. "Slipknot's Clown Talks About Upcoming Album". Blabbermouth. January 9, 2008. Archived from the original on January 12, 2008. Retrieved January 10, 2008.
19. Segal, Victoria (August 22, 2001). "Slipknot: Iowa". NME. UK. Retrieved March 21, 2008.
20. Ellis, Graham, "Decade of Horror," Terrorizer issue 184, June 2009, p. 25.
21. "Interview: Slipknot Look Back on the Making of 'Iowa'". Revolver. August 28, 2014. Retrieved August 17, 2015. Fortunately, the band members were able to channel their animosity into their music, creating their most extreme album yet. Songs like "Disasterpiece," "People = Shit," and "The Heretic Anthem" draw far more from death metal's scathing currency than nu-metal's trendy angst.
22. Packard, Michael T. (November 9, 2001). "Heavy Metal". The Harvard Crimson.
23. Fricke, David (September 17, 2001). "Iowa album review". Rolling Stone. Archived from the original on October 2, 2007. Retrieved February 22, 2012.
24. "NPA (Area) codes – Iowa". North American Numbering Plan Administration. Archived from the original on June 26, 2009. Retrieved May 17, 2008.
25. McIver, Joel (2003). Slipknot: Unmasked (Again). Omnibus. ISBN 0-7119-9764-0.
26. "Iowa - Slipknot | Songs, Reviews, Credits | AllMusic" – via www.allmusic.com.
27. Huey, Steve. "Slipknot Biography". Macrovision. Retrieved June 1, 2008.
28. Hubbard, Michael (August 26, 2002). "Slipknot liven up Reading's finale". BBC News. Retrieved June 1, 2008.
29. Mernagh, Matt (June 18, 2001). "Slipknot Kill The Industry". Chart. Archived from the original on February 9, 2009. Retrieved February 12, 2009.{{cite web}}: CS1 maint: unfit URL (link)
30. "'Maggots,' rejoice: Slipknot is back". Green Bay Press-Gazette. November 8, 2001.
31. Bartz, Simon (April 3, 2002). "Slipknot unmasked!". The Japan Times.
32. "The joy of 666". NME. UK. May 15, 2001. Archived from the original on October 11, 2012. Retrieved April 25, 2009.
33. Moss, Corey (August 29, 2001). "Slipknot Shoot For 'World Domination' With Iowa". MTV. Archived from the original on September 3, 2001. Retrieved April 24, 2009.
34. "Resident Evil (2002) – Soundtracks". Internet Movie Database. Retrieved September 5, 2008.
35. "Iowa - Slipknot". Metacritic. Retrieved November 16, 2014.
36. Things reach such a fever pitch on this album that you can't help but laugh at times. [Sep 2001, p.75]
37. "News". Archived from the original on October 15, 2016. Retrieved October 21, 2011.
38. Mulvey, John (August 28, 2001). "SLIPKNOT - IOWA (ROADRUNNER)". Dotmusic. Archived from the original on August 28, 2001. Retrieved August 14, 2019.
39. Sinclair, Tom (September 3, 2001). "Iowa". Entertainment Weekly. Retrieved August 14, 2019.
40. Reed, Graham (July 23, 2001). "Slipknot - Iowa". Drowned in Sound. Archived from the original on August 11, 2019. Retrieved August 14, 2019.
41. NME. August 25, 2001. p. 49
42. Luff, William (August 28, 2001). "Iowa - Slipknot". Playlouder. Archived from the original on November 2, 2001. Retrieved August 14, 2019.
43. Slipknot make one hell of a racket, an abrasive amalgam of death metal blastbeats and bestial grunting. [Oct 2001, p.130]
44. Iowa album review. College Music Journal. October 1, 2001. p. 13.
45. Iowa album review. Alternative Press. July 2001. p. 75.
46. 50 Albums of the year 2001. NME. December 29, 2001. p. 59.
47. Fricke, Davide (September 17, 2001). "Slipknot (Metal): Iowa". Rolling Stone. Archived from the original on October 2, 2007. Retrieved June 1, 2008.
48. Fricke, David (2001). Rolling Stone Rock & Roll Yearbook 2001. No. 885–886. {{cite magazine}}: Missing or empty |title= (help)
49. Iowa album review. Uncut. November 2001. p. 120.
50. Mulvey, John (August 23, 2001). "Slipknot – Iowa". Yahoo Music. Archived from the original on January 13, 2006. Retrieved March 21, 2008.
51. "Slipknot's Paul Gray: "I Know System Of A Down Will Win Grammy"". Blabbermouth.net. February 27, 2002. Archived from the original on December 19, 2007. Retrieved December 16, 2007.
52. "Grammy Awards Nominees Announced!". Blabbermouth.net. January 7, 2003. Archived from the original on June 20, 2008. Retrieved December 16, 2007.
53. "Billboard.com Artist Chart History – Slipknot". Nielsen Business Media Incorporated. Retrieved January 26, 2008.
54. "Slipknot". The Official Charts Company.
55. "Slipknot Australian Charts". australian-charts.com. Retrieved February 9, 2008.
56. "Iowa – Slipknot". Billboard. Retrieved January 26, 2008.
57. "Slipknot Finnish Charts". finnishcharts.com. Retrieved February 9, 2008.
58. "American album certifications – Slipknot – Iowa". Recording Industry Association of America.
59. "Canadian album certifications – Slipknot – Iowa". Music Canada.
60. "Iowa Certified Awards". British Phonographic Industry. August 24, 2001. Archived from the original on June 5, 2008. Retrieved February 10, 2008.
61. "A Century of Sound". Kerrang!. August 8, 2009. pp. 22–47.
62. "Top 11 Metal Albums of the 2000s". Loudwire.
63. "The 100 Best Hard Rock + Metal Albums of the 21st Century". Loudwire.
64. "Rolling Stone Share Their Choices For 'The 100 Greatest Metal Albums Of All Time'". Theprp.com. June 21, 2017.
65. "The 100 Greatest Heavy Metal Songs of All Time". Rolling Stone. March 13, 2023. Retrieved July 6, 2023.
66. Billmann, Pete; Jacobson, Jeff; Story, Jeff (2001). Iowa (Guitar/vocal/tab. ed.). Milwaukee, WI: Hal Leonard. ISBN 0634037374.
67. "Biography". Slipknot. Allmusic. Retrieved July 31, 2008.
68. "Australiancharts.com – Slipknot – Iowa". Hung Medien. Retrieved March 13, 2021.
69. "Austriancharts.at – Slipknot – Iowa" (in German). Hung Medien. Retrieved March 13, 2019.
70. "Ultratop.be – Slipknot – Iowa" (in Dutch). Hung Medien. Retrieved March 13, 2021.
71. "Ultratop.be – Slipknot – Iowa" (in French). Hung Medien. Retrieved March 13, 2021.
72. "Slipknot Chart History (Canadian Albums)". Billboard. Retrieved March 13, 2021.
73. "Danishcharts.dk – Slipknot – Iowa". Hung Medien. Retrieved March 13, 2021.
74. "Dutchcharts.nl – Slipknot – Iowa" (in Dutch). Hung Medien. Retrieved March 13, 2021.
75. "Slipknot: Iowa" (in Finnish). Musiikkituottajat – IFPI Finland. Retrieved March 13, 2021.
76. "Lescharts.com – Slipknot – Iowa". Hung Medien. Retrieved March 13, 2021.
77. "Offiziellecharts.de – Slipknot – Iowa" (in German). GfK Entertainment Charts. Retrieved March 13, 2021.
78. "Album Top 40 slágerlista – 2001. 40. hét" (in Hungarian). MAHASZ. Retrieved November 24, 2021.
79. "GFK Chart-Track Albums: Week 35, 2001". Chart-Track. IRMA. Retrieved March 13, 2021.
80. "Italiancharts.com – Slipknot – Iowa". Hung Medien. Retrieved March 13, 2021.
81. "Charts.nz – Slipknot – Iowa". Hung Medien. Retrieved March 13, 2021.
82. "Norwegiancharts.com – Slipknot – Iowa". Hung Medien. Retrieved March 13, 2021.
83. "Oficjalna lista sprzedaży :: OLiS - Official Retail Sales Chart". OLiS. Polish Society of the Phonographic Industry. Retrieved March 13, 2021.
84. "Official Scottish Albums Chart Top 100". Official Charts Company. Retrieved October 28, 2021.
85. Salaverri, Fernando (September 2005). Sólo éxitos: año a año, 1959–2002 (1st ed.). Spain: Fundación Autor-SGAE. ISBN 84-8048-639-2.
86. "Swedishcharts.com – Slipknot – Iowa". swedishcharts.com. Retrieved March 13, 2021.
87. "Swisscharts.com – Slipknot – Iowa". hitparade.ch. Retrieved March 13, 2021.
88. "Official Albums Chart Top 100". Official Charts Company. Retrieved March 13, 2021.
89. "Official Rock & Metal Albums Chart Top 40". Official Charts Company. Retrieved March 13, 2021.
90. "Slipknot Chart History (Billboard 200)". Billboard. Retrieved March 13, 2021.
91. "アイオワ 10THアニバーサリー・エディション | スリップノット" [Iowa 10th Anniversary Edition] (in Japanese). Oricon. Retrieved October 29, 2021.
92. "Portuguesecharts.com – Slipknot – Iowa". Hung Medien. Retrieved March 13, 2021.
93. "Canada's Top 200 Albums of 2001 (based on sales)". Jam!. Archived from the original on December 12, 2003. Retrieved March 26, 2022.
94. "The Official UK Albums Chart 2001" (PDF). UKChartsPlus. Retrieved September 16, 2021.
95. "Top Billboard 200 Albums – Year-End 2001". Billboard. Retrieved September 16, 2021.
96. "Canada's Top 200 Alternative albums of 2002". Jam!. Archived from the original on September 2, 2004. Retrieved March 28, 2022.
97. "Top 100 Metal Albums of 2002". Jam!. Archived from the original on August 12, 2004. Retrieved March 23, 2022.
98. "ARIA Charts – Accreditations – 2001 Albums" (PDF). Australian Recording Industry Association.
99. "Ultratop − Goud en Platina – albums 2001". Ultratop. Hung Medien.
100. "French album certifications – Slipknot – Lowa" (in French). Syndicat National de l'Édition Phonographique. Retrieved August 18, 2019.
101. "Gold-/Platin-Datenbank (Slipknot; 'Iowa')" (in German). Bundesverband Musikindustrie.
102. "Japanese album certifications – Slipknot – Iowa" (in Japanese). Recording Industry Association of Japan. Retrieved August 23, 2022. Select 2001年12月 on the drop-down menu
103. "Dutch album certifications – Slipknot – Iowa" (in Dutch). Nederlandse Vereniging van Producenten en Importeurs van beeld- en geluidsdragers. Retrieved August 8, 2019. Enter Iowa in the "Artiest of titel" box. Select 2008 in the drop-down menu saying "Alle jaargangen".
104. "British album certifications – Slipknot – Iowa". British Phonographic Industry.

External links

• Iowa at Metacritic