30. Avril Lavigne
Following her divorce from husband and Sum-41 frontman Deryck Whibley, Lavigne returned in 2011 with a new album and a smarter, savvier image more befitting of her 27 years. Her detached pop anthem “What the Hell” made some waves at radio, but her album was a flop for a pop princess of her stature. Undaunted, Lavigne has already completed a fifth album to be released in 2012. Don’t count this sk8er girl out.—Jeff Royer
(Photo: Charles Sykes, AP Images)
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