Celebs partied with style at the oh-so-glam Costume Institute Gala at the Met. The gala celebrated the opening of the museum's newest exhibit, Schiaparelli and Prada: Impossible Conversations. With co-chairs such as Anna Wintour, Miuccia Prada, and Carey Mulligan, this event proved to be a most fashionable parade of personalities, raising funds to help the Costume Institute stay in style.