List of Billboard Hot 100 number ones of 2011

The Billboard Hot 100 is a chart that ranks the best-performing songs of the United States. Its data, published by Billboard magazine and compiled by Nielsen SoundScan, is based collectively on each single's weekly physical and digital sales, as well as airplay. In 2011, 14 singles claimed the top spot in 53 issues of the magazine, one of which, singer Katy Perry's "Firework" started its peak position in late 2010.^[3]

Barbadian singer Rihanna earned her tenth and eleventh number-one singles when "S&M" and "We Found Love" both topped the chart.^[1][2]

In 2011, nine acts achieved their first US number-one single, either as a lead artist or a featured guest: Wiz Khalifa, Adele, Pitbull, Afrojack, Nayer, LMFAO, Lauren Bennett, GoonRock and Calvin Harris. Six collaboration singles topped the chart. Pop singers Adele, Britney Spears, Katy Perry and Rihanna each earned two number-one songs during the year.^[a] One of Adele's songs, "Rolling in the Deep", was the best-performing single of 2011, topping the Billboard Year-End Hot 100.^[4] She became the fourth solo female to have multiple songs spend at least five weeks each at number one in one calendar year.^[5]

Rihanna's "We Found Love" was the longest-running single of the year, having topped the chart for eight consecutive weeks in 2011 and two additional weeks in 2012.^[2] It became only the eleventh single by a female solo artist to have spent at least ten weeks at number-one in the chart's history.^[6] Adele's "Rolling In the Deep" stayed at number one for seven consecutive weeks, while Lady Gaga's "Born This Way"—the 1,000th number-one single of the Hot 100—and LMFAO's "Party Rock Anthem" topped the chart for six consecutive weeks.^[2][7] Perry's "E.T." and Adele's "Someone Like You" each spent five weeks at the number-one spot.^[2]

Chart history

Singer Adele's "Rolling in the Deep" topped the chart for seven consecutive weeks and over the course of the year became the best-performing single of 2011.^[4]

With "E.T." and "Last Friday Night (T.G.I.F.)", Katy Perry became the first female artist in history to have five number-one singles from one album.^[8]

Britney Spears became the first female artist to score number-one singles in the 1990s, 2000s, and 2010s when "Hold It Against Me" debuted in the top position.^[9]

Lady Gaga's "Born This Way" debuted and stayed No. 1 for six consecutive weeks.^[10]

Key

†	Indicates best-performing single of 2011

No.	Issue date	Song	Artist(s)	Ref.
996	January 1	"Firework"	Katy Perry	[11][12]
997	January 8	"Grenade"	Bruno Mars	[13][14]
re	January 15	"Firework"	Katy Perry	[15][16]
re	January 22	"Grenade"	Bruno Mars	[17][18]
998	January 29	"Hold It Against Me"	Britney Spears	[19][9]
re	February 5	"Grenade"	Bruno Mars	[20][21]
	February 12			[22][23]
999	February 19	"Black and Yellow"	Wiz Khalifa	[24][25]
1000	February 26	"Born This Way"	Lady Gaga	[26][7]
	March 5			[27][28]
	March 12			[29][30]
	March 19			[31][32]
	March 26			[33][34]
	April 2			[35][10]
1001	April 9	"E.T."	Katy Perry featuring Kanye West	[36][37]
	April 16			[38][39]
	April 23			[40][41]
1002	April 30	"S&M"	Rihanna featuring Britney Spears	[42][43][44]
re	May 7	"E.T."	Katy Perry featuring Kanye West	[45][46]
	May 14			[47][48]
1003	May 21	"Rolling in the Deep"†	Adele	[49][50]
	May 28			[51][52]
	June 4			[53][54]
	June 11			[55][56]
	June 18			[57][58]
	June 25			[59][60]
	July 2			[61][62]
1004	July 9	"Give Me Everything"	Pitbull featuring Ne-Yo, Afrojack and Nayer	[63][64]
1005	July 16	"Party Rock Anthem"	LMFAO featuring Lauren Bennett and GoonRock	[65][66]
	July 23			[67][68]
	July 30			[69][70]
	August 6			[71][72]
	August 13			[73][74]
	August 20			[75][76]
1006	August 27	"Last Friday Night (T.G.I.F.)"	Katy Perry	[77][8]
	September 3			[78][79]
1007	September 10	"Moves Like Jagger"	Maroon 5 featuring Christina Aguilera	[80][81]
1008	September 17	"Someone Like You"	Adele	[82][83]
re	September 24	"Moves Like Jagger"	Maroon 5 featuring Christina Aguilera	[84][85]
	October 1			[86][87]
	October 8			[88][89]
re	October 15	"Someone Like You"	Adele	[90][91]
	October 22			[92][93]
	October 29			[94][95]
	November 5			[96][5]
1009	November 12	"We Found Love"	Rihanna featuring Calvin Harris	[97][1]
	November 19			[98][99]
	November 26			[100][101]
	December 3			[102][103]
	December 10			[104][105]
	December 17			[106][107]
	December 24			[108][109]
	December 31			[110][2]

Number-one artists

List of number-one artists by total weeks at number one

Position	Artist	Weeks at No. 1
1	Adele	12
2	Katy Perry	9
	Rihanna
4	Calvin Harris	8
5	Lady Gaga	6
	LMFAO
	Lauren Bennett
	Goonrock
9	Kanye West	5
10	Bruno Mars	4
	Maroon 5
	Christina Aguilera
13	Britney Spears	2
14	Wiz Khalifa	1
	Pitbull
	Ne-Yo
	Afrojack
	Nayer

See also

• 2011 in music
• List of Billboard Hot 100 top-ten singles in 2011
• List of Billboard Hot 100 number-one singles of the 2010s

Notes

• ^ Perry had three number-one singles on the chart in 2011. However, "Firework" is excluded from the count, because it previously topped the chart in 2010.^[3][111]