List of Billboard Mainstream Top 40 number-one songs of 2021

This is a list of songs which reached number one on the Billboard Mainstream Top 40 (or Pop Songs) chart in 2021.

Chart history[]

Key

Indicates best-performing song of 2021[1]

Issue date	Song	Artist(s)	Ref.
January 2	"Positions"	Ariana Grande	[2]
January 9			[3]
January 16			[4]
January 23			[5]
January 30			[6]
February 6			[7]
February 13	"34+35"		[8]
February 20			[9]
February 27			[10]
March 6	"Drivers License"	Olivia Rodrigo	[11]
March 13			[12]
March 20			[13]
March 27			[14]
April 3			[15]
April 10	"Therefore I Am"	Billie Eilish	[16]
April 17			[17]
April 24	"Save Your Tears"	The Weeknd	[18]
May 1			[19]
May 8			[20]
May 15			[21]
May 22	"Peaches"	Justin Bieber featuring Daniel Caesar and Giveon	[22]
May 29			[23]
June 5			[24]
June 12			[25]
June 19	"Levitating"	Dua Lipa featuring DaBaby	[26]
June 26			[27]
July 3			[28]
July 10	"Kiss Me More"	Doja Cat featuring SZA	[29]
July 17	"Montero (Call Me by Your Name)"	Lil Nas X	[30]
July 24	"Good 4 U"	Olivia Rodrigo	[31]
July 31			[32]
August 7			[33]
August 14			[34]
August 21			[35]
August 28			[36]
September 4	"Stay"	The Kid Laroi and Justin Bieber	[37]
September 11			[38]
September 18			[39]
September 25			[40]
October 2			[41]
October 9			[42]
October 16			[43]
October 23			[44]
October 30			[45]
November 6			[46]
November 13			[47]
November 20	"Industry Baby"	Lil Nas X and Jack Harlow	[48]
November 27	"Stay"	The Kid Laroi and Justin Bieber	[49]
December 4			[50]
December 11	"Easy on Me"	Adele	[51]
December 18			[52]
December 25			[53]

See also[]

• 2021 in American music

References[]

External links[]

• Current Billboard Pop Songs chart