List of Billboard Mainstream Top 40 number-one songs of 2010

This is a list of songs which reached number one on the Billboard Mainstream Top 40 (or Pop Songs) chart in 2010.

During 2010, a total of 17 singles hit number-one on the charts.

Chart history

Key

†	Indicates best-performing single of 2010

Issue date	Song	Artist(s)	Ref.
January 2	"Replay"	Iyaz	[1]
January 9			[2]
January 16	"Bad Romance"	Lady Gaga	[3]
January 23			[4]
January 30			[5]
February 6	"Tik Tok" †	Ke$ha	[6]
February 13			[7]
February 20			[8]
February 27			[9]
March 6			[10]
March 13			[11]
March 20			[12]
March 27	"Telephone"	Lady Gaga featuring Beyoncé	[13]
April 3			[14]
April 10			[15]
April 17			[16]
April 24	"In My Head"	Jason Derülo	[17]
May 1			[18]
May 8	"Rude Boy"	Rihanna	[19]
May 15			[20]
May 22	"Nothin' on You"	B.o.B featuring Bruno Mars	[21]
May 29	"Break Your Heart"	Taio Cruz featuring Ludacris	[22]
June 5			[23]
June 12			[24]
June 19	"Your Love Is My Drug"	Ke$ha	[25]
June 26			[26]
July 3	"California Gurls"	Katy Perry featuring Snoop Dogg	[27]
July 10			[28]
July 17			[29]
July 24			[30]
July 31			[31]
August 7			[32]
August 14			[33]
August 21	"Love the Way You Lie"	Eminem featuring Rihanna	[34]
August 28			[35]
September 4	"Dynamite"	Taio Cruz	[36]
September 11			[37]
September 18			[38]
September 25			[39]
October 2	"Teenage Dream"	Katy Perry	[40]
October 9			[41]
October 16			[42]
October 23			[43]
October 30	"Just the Way You Are"	Bruno Mars	[44]
November 6			[45]
November 13			[46]
November 20	"Just a Dream"	Nelly	[47]
November 27			[48]
December 4	"Only Girl (In the World)"	Rihanna	[49]
December 11			[50]
December 18			[51]
December 25	"Raise Your Glass"	P!nk	[52]

See also

• 2010 in music