Favourite outfits at the MET Ball 2012: Ashley Greene in Donna Karan

Favourite outfits at the MET Ball 2012: Kristen Bell in Tommy Hilfigher

Favourite outfits at the MET Ball 2012: Michelle Dockery in Ralph Lauren Collection

Favourite outfits at the MET Ball 2012: Renée Zellweger in Emilio Pucci