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

WHITE DRESS

Rosario Dawson chooses an all-white Christian Siriano dress, nude pumps and a gold clutch for a L.A. event, but would you dare to wear the same shade as the bride?