Celebrity Central / Top 25 Celebs
Credit: Jon Kopaloff/FilmMagic
Published: Saturday November 10, 2012 06:00 AM EST
More from PEOPLE
See More News
105 of 277
The slimmed-down star shows off her svelte figure in a simple black Skaist Taylor sweater dress (is it reminding anyone else of Britney's outfit?), BaubleBar earrings and black pumps for the X Factor bash.
Copyright © 2014 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.