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Demi Lovato

LOS ANGELES, CA - DECEMBER 20: Singer/tv personality Demi Lovato attends the season finale of Fox's 'The X Factor' at CBS Television City on December 20, 2012 in Los Angeles, California. (Photo by Barry King/FilmMagic)

Celebrity Rumor Mill

Gossip Cop debunks the most ridiculous celebrity rumors of the week, from Miley's secret wedding to Mariah's new diet.