11. BRITNEY SPEARS
Is it too early to call 2011 "Britney Spears' official comeback year"? The controversial pop superstar's previous attempt to revive her career at the 2008 MTV Video Music Awards, with an performance of "Gimme More," was prematurely labeled as Spears' return. Yet, this year, with a new album out, Femme Fatale, which has already spawned three chart-toppers, her Femme Fatale Tour selling out at every stop, her body back in perfect shape, and her head of hair completely grown back in, we think it's safe to say that Britney is back, bitches.