Rolling Stone Introducing The New Queen Of Pop : Lady GaGa

The last half-decade of popular music has been an era of female dominance: Britney. Gaga. Beyoncé. Katy. Rihanna. But who, we wondered, is the undisputed Queen of Pop?

Here is the first Rolling Stone Queen of Pop Index. We ranked 16 solo female artits, looking at album and digital song sales, Hot 100 rankings, radio airplay, YouTube views, social media, concert grosses, industry awards and critics' ratings. In alphabetical order, they are: Adele, Christina Aguilera,Beyonce, Kelly Clarkson, Miley Cyrus, Ke$ha, Lady GaGa, Nicki Minaj, Katy Perry , P!nk, Rihanna, Robyn, Shakira, Britney, Taylor Swift & Carrie Underwood.