High-Fashion Faceoff: Runway vs. Red CarpetSee how Madonna, Miley Cyrus, Beyoncé and more stars put their own spin on designs sent down the runway – then vote on who styled the looks best

JENNIFER IN DIOR HAUTE COUTURE

We can't quite put our finger on what Lawrence changed about this look. Oh, wait, we think we've got it: She ditched the pearls at the collar. What a difference!