Amber Valletta, Kate Bosworth, and Jamie Bochert in Our 2010 Costume Institute Best Dressed List

Alexa Chung in 3.1 Phillip Lim

Karolina Kurkova in an apron dress from Joseph Altuzarra's spring collection, Alexa Chung's Western-style tuxedo by Phillip Lim, Jamie Bochert's Rodarte for Gap column dress, and Chanel Iman's metallic Michael Kors jumpsuit were some of our favorite looks from last night's Costume Institute gala. Click through our top picks and tell us if you agree!