No. 1 songs of 2011

January 2011

1. Born Jan 1–7Firework · Katy Perry
2. Born Jan 8–14Grenade · Bruno Mars
3. Born Jan 15–21Firework · Katy Perry
4. Born Jan 22–28Grenade · Bruno Mars
5. Born Jan 29 – Feb 4Hold It Against Me · Britney Spears

February 2011

1. Born Feb 5–11Grenade · Bruno Mars
2. Born Feb 12–18Grenade · Bruno Mars
3. Born Feb 19–25Black and Yellow · Wiz Khalifa
4. Born Feb 26 – Mar 4Born This Way · Lady Gaga

March 2011

1. Born Mar 5–11Born This Way · Lady Gaga
2. Born Mar 12–18Born This Way · Lady Gaga
3. Born Mar 19–25Born This Way · Lady Gaga
4. Born Mar 26 – Apr 1Born This Way · Lady Gaga

April 2011

1. Born Apr 2–8Born This Way · Lady Gaga
2. Born Apr 9–15E.T. · Katy Perry featuring Kanye West
3. Born Apr 16–22E.T. · Katy Perry featuring Kanye West
4. Born Apr 23–29E.T. · Katy Perry featuring Kanye West
5. Born Apr 30 – May 6S&M · Rihanna featuring Britney Spears

May 2011

1. Born May 7–13E.T. · Katy Perry featuring Kanye West
2. Born May 14–20E.T. · Katy Perry featuring Kanye West
3. Born May 21–27Rolling in the Deep · Adele
4. Born May 28 – Jun 3Rolling in the Deep · Adele

June 2011

1. Born Jun 4–10Rolling in the Deep · Adele
2. Born Jun 11–17Rolling in the Deep · Adele
3. Born Jun 18–24Rolling in the Deep · Adele
4. Born Jun 25 – Jul 1Rolling in the Deep · Adele

July 2011

1. Born Jul 2–8Rolling in the Deep · Adele
2. Born Jul 9–15Give Me Everything · Pitbull featuring Ne-Yo, Afrojack and Nayer
3. Born Jul 16–22Party Rock Anthem · LMFAO featuring Lauren Bennett and GoonRock
4. Born Jul 23–29Party Rock Anthem · LMFAO featuring Lauren Bennett and GoonRock
5. Born Jul 30 – Aug 5Party Rock Anthem · LMFAO featuring Lauren Bennett and GoonRock

August 2011

1. Born Aug 6–12Party Rock Anthem · LMFAO featuring Lauren Bennett and GoonRock
2. Born Aug 13–19Party Rock Anthem · LMFAO featuring Lauren Bennett and GoonRock
3. Born Aug 20–26Party Rock Anthem · LMFAO featuring Lauren Bennett and GoonRock
4. Born Aug 27 – Sep 2Last Friday Night (T.G.I.F.) · Katy Perry

September 2011

1. Born Sep 3–9Last Friday Night (T.G.I.F.) · Katy Perry
2. Born Sep 10–16Moves Like Jagger · Maroon 5 featuring Christina Aguilera
3. Born Sep 17–23Someone Like You · Adele
4. Born Sep 24–30Moves Like Jagger · Maroon 5 featuring Christina Aguilera

October 2011

1. Born Oct 1–7Moves Like Jagger · Maroon 5 featuring Christina Aguilera
2. Born Oct 8–14Moves Like Jagger · Maroon 5 featuring Christina Aguilera
3. Born Oct 15–21Someone Like You · Adele
4. Born Oct 22–28Someone Like You · Adele
5. Born Oct 29 – Nov 4Someone Like You · Adele

November 2011

1. Born Nov 5–11Someone Like You · Adele
2. Born Nov 12–18We Found Love · Rihanna featuring Calvin Harris
3. Born Nov 19–25We Found Love · Rihanna featuring Calvin Harris
4. Born Nov 26 – Dec 2We Found Love · Rihanna featuring Calvin Harris

December 2011

1. Born Dec 3–9We Found Love · Rihanna featuring Calvin Harris
2. Born Dec 10–16We Found Love · Rihanna featuring Calvin Harris
3. Born Dec 17–23We Found Love · Rihanna featuring Calvin Harris
4. Born Dec 24–30We Found Love · Rihanna featuring Calvin Harris
5. Born Dec 31 – Jan 6We Found Love · Rihanna featuring Calvin Harris