PREVIOUS RESULTS
Britney Spears - "Teenage Dream" (song) - not as successful
Rihanna - Crazy In Love (feat Jay Z) - not as successful
Ke$ha - Super Bass - not as successful
Katy Perry - The Edge of Glory - just as successful
Lady Gaga - Run The World (Girls) - more successful
P!nk - "Stronger (What Doesn't Kill You)" - more successful
Christina Aguilera - "California King Bed" - not as successful
Beyonce - "Criminal" - not as successful
Kelly Clarkson - "Hurt" - more successful
Nicki Minaj - "Fergalicious" - not as successful
Mariah Carey - "Single Ladies (Put a Ring On It)" - not as successful