Sports
Entertainment
Life & products
| Date | Title | Country | Details |
|---|---|---|---|
| 1/1 | FireworkDetailsArtist: Katy Perry · Weeks at No. 1 that month: 2 | United States | Artist: Katy Perry · Weeks at No. 1 that month: 2 |
| 1/8 | GrenadeDetailsArtist: Bruno Mars · Weeks at No. 1 that month: 2 | United States | Artist: Bruno Mars · Weeks at No. 1 that month: 2 |
| 1/29 | Hold It Against MeDetailsArtist: Britney Spears · Weeks at No. 1 that month: 1 | United States | Artist: Britney Spears · Weeks at No. 1 that month: 1 |
| 2/5 | GrenadeDetailsArtist: Bruno Mars · Weeks at No. 1 that month: 2 | United States | Artist: Bruno Mars · Weeks at No. 1 that month: 2 |
| 2/19 | Black and YellowDetailsArtist: Wiz Khalifa · Weeks at No. 1 that month: 1 | United States | Artist: Wiz Khalifa · Weeks at No. 1 that month: 1 |
| 2/26 | Born This WayDetailsArtist: Lady Gaga · Weeks at No. 1 that month: 1 | United States | Artist: Lady Gaga · Weeks at No. 1 that month: 1 |
| 3/5 | Born This WayDetailsArtist: Lady Gaga · Weeks at No. 1 that month: 4 | United States | Artist: Lady Gaga · Weeks at No. 1 that month: 4 |
| 4/2 | Born This WayDetailsArtist: Lady Gaga · Weeks at No. 1 that month: 1 | United States | Artist: Lady Gaga · Weeks at No. 1 that month: 1 |
| 4/9 | E.T.DetailsArtist: Katy Perry featuring Kanye West · Weeks at No. 1 that month: 3 | United States | Artist: Katy Perry featuring Kanye West · Weeks at No. 1 that month: 3 |
| 4/30 | S&MDetailsArtist: Rihanna featuring Britney Spears · Weeks at No. 1 that month: 1 | United States | Artist: Rihanna featuring Britney Spears · Weeks at No. 1 that month: 1 |
| 5/7 | E.T.DetailsArtist: Katy Perry featuring Kanye West · Weeks at No. 1 that month: 2 | United States | Artist: Katy Perry featuring Kanye West · Weeks at No. 1 that month: 2 |
| 5/21 | Rolling in the DeepDetailsArtist: Adele · Weeks at No. 1 that month: 2 | United States | Artist: Adele · Weeks at No. 1 that month: 2 |
| 6/4 | Rolling in the DeepDetailsArtist: Adele · Weeks at No. 1 that month: 4 | United States | Artist: Adele · Weeks at No. 1 that month: 4 |
| 7/2 | Rolling in the DeepDetailsArtist: Adele · Weeks at No. 1 that month: 1 | United States | Artist: Adele · Weeks at No. 1 that month: 1 |
| 7/9 | Give Me EverythingDetailsArtist: Pitbull featuring Ne-Yo, Afrojack and Nayer · Weeks at No. 1 that month: 1 | United States | Artist: Pitbull featuring Ne-Yo, Afrojack and Nayer · Weeks at No. 1 that month: 1 |
| 7/16 | Party Rock AnthemDetailsArtist: LMFAO featuring Lauren Bennett and GoonRock · Weeks at No. 1 that month: 3 | United States | Artist: LMFAO featuring Lauren Bennett and GoonRock · Weeks at No. 1 that month: 3 |
| 8/6 | Party Rock AnthemDetailsArtist: LMFAO featuring Lauren Bennett and GoonRock · Weeks at No. 1 that month: 3 | United States | Artist: LMFAO featuring Lauren Bennett and GoonRock · Weeks at No. 1 that month: 3 |
| 8/27 | Last Friday Night (T.G.I.F.)DetailsArtist: Katy Perry · Weeks at No. 1 that month: 1 | United States | Artist: Katy Perry · Weeks at No. 1 that month: 1 |
| 9/3 | Last Friday Night (T.G.I.F.)DetailsArtist: Katy Perry · Weeks at No. 1 that month: 1 | United States | Artist: Katy Perry · Weeks at No. 1 that month: 1 |
| 9/10 | Moves Like JaggerDetailsArtist: Maroon 5 featuring Christina Aguilera · Weeks at No. 1 that month: 2 | United States | Artist: Maroon 5 featuring Christina Aguilera · Weeks at No. 1 that month: 2 |
| 9/17 | Someone Like YouDetailsArtist: Adele · Weeks at No. 1 that month: 1 | United States | Artist: Adele · Weeks at No. 1 that month: 1 |
| 10/1 | Moves Like JaggerDetailsArtist: Maroon 5 featuring Christina Aguilera · Weeks at No. 1 that month: 2 | United States | Artist: Maroon 5 featuring Christina Aguilera · Weeks at No. 1 that month: 2 |
| 10/15 | Someone Like YouDetailsArtist: Adele · Weeks at No. 1 that month: 3 | United States | Artist: Adele · Weeks at No. 1 that month: 3 |
| 11/5 | Someone Like YouDetailsArtist: Adele · Weeks at No. 1 that month: 1 | United States | Artist: Adele · Weeks at No. 1 that month: 1 |
| 11/12 | We Found LoveDetailsArtist: Rihanna featuring Calvin Harris · Weeks at No. 1 that month: 3 | United States | Artist: Rihanna featuring Calvin Harris · Weeks at No. 1 that month: 3 |
| 12/3 | We Found LoveDetailsArtist: Rihanna featuring Calvin Harris · Weeks at No. 1 that month: 5 | United States | Artist: Rihanna featuring Calvin Harris · Weeks at No. 1 that month: 5 |