List of Billboard Adult Contemporary number ones of 2011
Chart history

List of Billboard Adult Contemporary number ones of 2011

Section Title: Chart history
Table Section Text: None

Issue date	Title	Artist(s)	Ref.

January 1	"Oh Santa!"	Mariah Carey

January 8

January 15	"Hey, Soul Sister"	Train

January 22

January 29

February 5	"Just the Way You Are"	Bruno Mars

February 12

February 19

February 26

March 5

March 12

March 19

March 26

April 2

April 9

April 16

April 23

April 30

May 7

May 14

May 21

May 28	"Firework"	Katy Perry

June 4	"Just the Way You Are"	Bruno Mars

June 11

June 18

June 25

July 2	"Rolling in the Deep"	Adele

July 9

July 16

July 23

July 30

August 6

August 13

August 20

August 27

September 3

September 10

September 17

September 24

October 1

October 8

October 15

October 22

October 29

November 5

November 12	"If I Die Young"	The Band Perry

November 19

November 26

December 3	"Someone Like You"	Adele

December 10	"All I Want for Christmas Is You"	Michael Bublé

December 17

December 24

December 31

Sentence(s)

Adele returned in the issue of Billboard dated December 3 with "Someone Like You", making her the only artist to have two AC number ones in 2011.
Adele returned in the issue of Billboard dated December 3 with "Someone Like You", making her the only artist to have two AC number ones in 2011.
Adele returned to the top spot for a single week in the issue of Billboard dated December 3 with "Someone Like You", making her the only artist to have two AC number ones in 2011.

final_sentence: Adele returned in the issue of Billboard dated December 3 with "Someone Like You", making her the only artist to have two AC number ones in 2011.
final_sentence: Adele returned in the issue of Billboard dated December 3 with "Someone Like You", making her the only artist to have two AC number ones in 2011.
final_sentence: Adele returned to the top spot for a single week in the issue of Billboard dated December 3 with "Someone Like You", making her the only artist to have two AC number ones in 2011.