12 overrated celebrities of 2011

Britney Spears has scored millions of albums, and cranked out chart-reigning jams for more than 10 years. And she managed to come through an especially public meltdown to once again regain her footing as one of pop's most bankable stars. Sure, she doesn't have much to prove, but with the release of this year's "Femme Fatale" album, Brit just doesn't seem to be as into it as she used to be. Her performances don't have the spark or energy of her "Slave 4 U" or "...One More Time" days, and her latest hits are more of the brain-dead, fist-pumping, chart-friendly house that everyone else is doing.