| Date |
Number One |
Number Two |
|
12-24-2011 |
Katy Perry - "The One That Got Away" |
Rihanna f/ Calvin Harris - "We Found Love" |
|
12-17-2011 |
Rihanna f/ Calvin Harris - "We Found Love" |
Katy Perry - "The One That Got Away" |
|
12-10-2011 |
Rihanna f/ Calvin Harris - "We Found Love" |
Katy Perry - "The One That Got Away" |
|
12-03-2011 |
Rihanna f/ Calvin Harris - "We Found Love" |
Coldplay - "Paradise" |
|
11-26-2011 |
Rihanna f/ Calvin Harris - "We Found Love" |
Coldplay - "Paradise" |
|
11-19-2011 |
Rihanna f/ Calvin Harris - "We Found Love" |
Kelly Clarkson - "Mr. Know It All" |
|
11-12-2011 |
Rihanna f/ Calvin Harris - "We Found Love" |
Kelly Clarkson - "Mr. Know It All" |
|
11-05-2011 |
Rihanna f/ Calvin Harris - "We Found Love" |
Kelly Clarkson - "Mr. Know It All" |
|
10-29-2011 |
Maroon 5
f/ Christina Aguilera - "Moves Like
Jagger" |
Rihanna f/ Calvin Harris - "We Found Love" |
|
10-22-2011 |
Maroon 5
f/ Christina Aguilera - "Moves Like
Jagger" |
Rihanna f/ Calvin Harris - "We Found Love" |
|
10-15-2011 |
Maroon 5
f/ Christina Aguilera - "Moves Like
Jagger" |
Lady Gaga - "You And I" |
|
10-08-2011 |
Maroon 5
f/ Christina Aguilera - "Moves Like
Jagger" |
Lady Gaga - "You And I" |
|
10-01-2011 |
Maroon 5
f/ Christina Aguilera - "Moves Like
Jagger" |
Lady Gaga - "You And I" |
|
09-24-2011 |
Maroon 5
f/ Christina Aguilera - "Moves Like
Jagger" |
Lady Gaga - "You And I" |
|
09-17-2011 |
Maroon 5
f/ Christina Aguilera - "Moves Like
Jagger" |
Lady Gaga - "You And I" |
|
09-10-2011 |
Maroon 5
f/ Christina Aguilera - "Moves Like
Jagger" |
Katy Perry - "Last Friday Night (T.G.I.F.)" |
|
09-03-2011 |
Maroon 5
f/ Christina Aguilera - "Moves Like
Jagger" |
Katy Perry - "Last Friday Night (T.G.I.F.)" |
|
08-27-2011 |
Maroon 5
f/ Christina Aguilera - "Moves Like
Jagger" |
Katy Perry - "Last Friday Night (T.G.I.F.)" |
|
08-20-2011 |
Katy Perry - "Last Friday Night (T.G.I.F.)" |
Maroon 5
f/ Christina Aguilera - "Moves Like
Jagger" |
|
08-13-2011 |
Katy Perry - "Last Friday Night (T.G.I.F.)" |
Lady Gaga - "The Edge Of Glory" |
|
08-06-2011 |
Katy Perry - "Last Friday Night (T.G.I.F.)" |
Lady Gaga - "The Edge Of Glory" |
|
07-30-2011 |
Katy Perry - "Last Friday Night (T.G.I.F.)" |
Lady Gaga - "The Edge Of Glory" |
|
07-23-2011 |
Lady Gaga - "The Edge Of Glory" |
Katy Perry - "Last Friday Night (T.G.I.F.)" |
|
07-16-2011 |
Lady Gaga - "The Edge Of Glory" |
Katy Perry - "Last Friday Night (T.G.I.F.)" |
|
07-09-2011 |
Lady Gaga - "The Edge Of Glory" |
Katy Perry - "Last Friday Night (T.G.I.F.)" |
|
07-02-2011 |
Lady Gaga - "The Edge Of Glory" |
Katy Perry - "Last Friday Night (T.G.I.F.)" |
|
06-25-2011 |
Lady Gaga - "The Edge Of Glory" |
Lady Gaga - "Judas" |
|
06-18-2011 |
Lady Gaga - "The Edge Of Glory" |
Lady Gaga - "Judas" |
|
06-11-2011 |
Lady Gaga - "The Edge Of Glory" |
Lady Gaga - "Judas" |
|
06-04-2011 |
Lady Gaga - "Judas" |
Britney Spears - "Till The World Ends" |
|
05-28-2011 |
Lady Gaga - "Judas" |
Britney Spears - "Till The World Ends" |
|
05-21-2011 |
Lady Gaga - "Judas" |
Britney Spears - "Till The World Ends" |
|
05-14-2011 |
Britney Spears - "Till The World Ends" |
Katy Perry f/ Kanye West - "E.T." |
|
05-07-2011 |
Katy Perry f/ Kanye West - "E.T." |
Jennifer Lopez f/ Pitbull - "On The Floor" |
|
04-30-2011 |
Jennifer Lopez f/ Pitbull - "On The Floor" |
Katy Perry f/ Kanye West - "E.T." |
|
04-23-2011 |
Jennifer Lopez f/ Pitbull - "On The Floor" |
Lady Gaga - "Born This Way" |
|
04-16-2011 |
Lady Gaga - "Born This Way" |
Jennifer Lopez f/ Pitbull - "On The Floor" |
|
04-09-2011 |
Lady Gaga - "Born This Way" |
Adele - "Rolling In The Deep" |
|
04-02-2011 |
Lady Gaga - "Born This Way" |
Adele - "Rolling In The Deep" |
|
03-26-2011 |
Lady Gaga - "Born This Way" |
Adele - "Rolling In The Deep" |
|
03-19-2011 |
Lady Gaga - "Born This Way" |
Adele - "Rolling In The Deep" |
|
03-12-2011 |
Lady Gaga - "Born This Way" |
Britney Spears - "Hold It Against Me" |
|
03-05-2011 |
Lady Gaga - "Born This Way" |
Britney Spears - "Hold It Against Me" |
|
02-26-2011 |
Britney Spears - "Hold It Against Me" |
P!nk - "F***in Perfect" |
|
02-19-2011 |
Britney Spears - "Hold It Against Me" |
Adele - "Rolling In The Deep" |
|
02-12-2011 |
Bruno Mars - "Grenade" |
Britney Spears - "Hold It Against Me" |
|
02-05-2011 |
Bruno Mars - "Grenade" |
Britney Spears - "Hold It Against Me" |
|
01-29-2011 |
Bruno Mars - "Grenade" |
Katy Perry - "Firework" |
|
01-22-2011 |
Katy Perry - "Firework" |
Rihanna f/ Drake - "What's My Name" |
|
01-15-2011 |
Katy Perry - "Firework" |
Rihanna f/ Drake - "What's My Name" |
|
01-08-2011 |
Katy Perry - "Firework" |
Rihanna f/ Drake - "What's My Name" |
|
01-01-2011 |
Katy Perry - "Firework" |
Rihanna - "Only
Girl (In The World)" |
