Wedding Guest Style: Would You Wear These Looks?

Leighton Meester's mini, Rachel Bilson's backless dress, Cat Deeley's white suit – are these stars' red carpet outfits appropriate to wear to a wedding? Vote now

BODY-CONSCIOUS SILHOUETTE

Emmy Rossum works her Julien Macdonald dress with gold Jimmy Choo heels for a Vegas bash, but should what looks appropriate in Vegas stay in Vegas?