Britney Spear's time on the X Factor has been full of highs and lows, but on the December 5th episode featuring the top six remaining performers, Britney Spears came out looking flawless in a tight black Herve Leger cut-out mini that showed off her chiseled mommy abs.

Each of the top six performers sang one "unplugged" song and another one selected by viewers. Carly Rose Soneclar was given high marks by the judges for her rendition of Beyonce's "If I Were A Boy" while Tate Stevens received less than stellar reviews. The elimination episode will take place on Thursday, December 6th on CBS.

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