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

LEG-BARING MINI

Leighton Meester rocks a Christian Dior minidress with vivid Pierre Hardy wedges to a L.A. premiere, but is the length too much for someone else's big day?