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  • DEMI LOVATO photo | Demi Lovato

Credit: Jon Kopaloff/FilmMagic

Updated: Saturday Sep 15, 2012 | 06:00 AM EDT

DEMI LOVATO

With just one day to go 'til her show's big premiere, the X Factor judge gets our vote at FOX's Fall Eco-Casino Party in Culver City, Calif., thanks to her embellished nude sheath, black ankle-strap peep-toes, a coordinating Swarovski clutch and a ballerina bun.