List of Billboard Mainstream Top 40 number-one songs of 2020

This is a list of songs that reached number one on the Billboard Mainstream Top 40 (or Pop Songs) chart in 2020.

During 2020, a total of 15 singles hit number-one on the charts.

Chart history

Key

†	Indicates best-performing song of 2020[1]

Issue date	Song	Artist(s)	Ref.
January 4	"Circles"	Post Malone	[2]
January 11			[3]
January 18			[4]
January 25			[5]
February 1			[6]
February 8	"Memories"	Maroon 5	[7]
February 15	"Circles"	Post Malone	[8]
February 22			[9]
February 29	"Don't Start Now"	Dua Lipa	[10]
March 7			[11]
March 14			[12]
March 21			[13]
March 28			[14]
April 4			[15]
April 11	"Adore You"	Harry Styles	[16]
April 18	"Blinding Lights" †	The Weeknd	[17]
April 25			[18]
May 2			[19]
May 9	“My Oh My”	Camila Cabello featuring DaBaby	[20]
May 16	"Say So"	Doja Cat	[21]
May 23			[22]
May 30			[23]
June 6			[24]
June 13			[25]
June 20			[26]
June 27	"Intentions"	Justin Bieber featuring Quavo	[27]
July 4	"Blinding Lights" †	The Weeknd	[28]
July 11			[29]
July 18			[30]
July 25	"Falling"	Trevor Daniel	[31]
August 1	"Break My Heart"	Dua Lipa	[32]
August 8	"Watermelon Sugar"	Harry Styles	[33]
August 15			[34]
August 22			[35]
August 29			[36]
September 5			[37]
September 12			[38]
September 19			[39]
September 26	"Before You Go"	Lewis Capaldi	[40]
October 3	"Savage Love (Laxed – Siren Beat)"	Jawsh 685 and Jason Derulo	[41]
October 10			[42]
October 17			[43]
October 24			[44]
October 31	"Mood"	24kGoldn and Iann Dior	[45]
November 7			[46]
November 14			[47]
November 21			[48]
November 28			[49]
December 5			[50]
December 12			[51]
December 19			[52]
December 26	"Positions"	Ariana Grande	[53]

See also

• 2020 in American music