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This is a list of songs which reached number one on the Billboard Mainstream Top 40 chart in 2007.

During 2007, a total of 13 singles hit number-one on the charts.

Chart history

Issue date	Song	Artist(s)	Ref.
January 6	"Irreplaceable"	Beyoncé	^[1]
January 13
January 20
January 27
February 3
February 10
February 17
February 24	"Say It Right"	Nelly Furtado
March 3
March 10
March 17
March 24	"What Goes Around...Comes Around"	Justin Timberlake
March 31	"It's Not Over"	Daughtry
April 7	"It's Not Over"	Daughtry
April 14	"Cupid's Chokehold"	Gym Class Heroes featuring Patrick Stump
April 21
April 28
May 5
May 12
May 19	"U + Ur Hand"	Pink
May 26
June 2
June 9
June 16	"Girlfriend"	Avril Lavigne
June 23	"Summer Love"	Justin Timberlake
June 30
July 7
July 14
July 21	"Big Girls Don't Cry"	Fergie
July 28
August 4
August 11
August 18
August 25
September 1
September 8
September 15	"The Way I Are"	Timbaland featuring Keri Hilson
September 22
September 29
October 6	"Who Knew"	Pink
October 13
October 20
October 27	"Stronger"	Kanye West
November 3
November 10
November 17	"Apologize"	Timbaland presents OneRepublic
November 24
December 1
December 8
December 15
December 22
December 29