The LA premiere for Bradley Coooper's new comedy The Hangover was packed full of stars!  It was also a nice surprise to see the Olsen twins, Mary-Kate Olsen and Ashley Olsen! It has been months since they made a red carpet appearance!

Also celebs like The Hills' Audrina Patridge, Zac Efron, Kate Walsh and Entourage stars Jeremy Piven and Jerry Ferrara. were all there. It was also a big surprise to see the Olsen twins, Mary-Kate Olsen and Ashley Olsen! It has been months since they made a red carpet appearance!






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