11. Selena Gomez
Gomez was inescapable in 2011, in large part because she’s dating an inescapable boy: Justin Bieber. She released her third album this year, and notched her first true Top 40 hit in “Who Says,” but has yet to have a true break-out moment to distance herself from her recent Disney past. But she’s only 19, so she’s got time.—Jeff Royer
(Photo: Jason Merritt, Getty Images)
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