10. Mariah Carey
With the exception of recording a duet for Justin Bieber’s holiday album, Carey has spent the latter half of 2011 tweeting photos of her twin babies and leaking shots of her post-baby body. Husband Nick Cannon revealed earlier this year that Carey was already working on her next album, so look for her to shift her focus back to her career in 2012 and shoot back up the diva charts.—Jeff Royer
(Photo: Cindy Ord, Getty Images)
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