1 / 8

Fox 2012 Programming Presentation Post-Show Party

NEW YORK, NY - MAY 14: (L-R) L.A. Reid, Demi Lovato, Simon Cowell, and Britney Spears at Wollman Rink - Central Park on May 14, 2012 in New York City. (Photo by Dave Kotinsky/Getty Images)

Britney Spears' two 'X Factor' outfits

The pop star wears not one, but two sexy dresses during the announcement that she will be a judge for the new season of the 'X Factor' along with Demi Lovato.