Who? X Factor last night and while we weren't expecting her to showcase a pre Autumn/Winter Stella McCartney design, she made a surprising sartorial statement in the printed blue number and grey peep-toe heels. However, perhaps more predictably, her dress was a tad on the tight side.
Where? Hollywood, 11 September
Verdict? The question is, has Britney taken skintight a bit too literally or can she go skimpier? Let us know your thoughts in a comment and see more of the star in her style evolution below:
Find out the latest X Factor gossip in the video below: