Celebrities dressed to impress at the annual Costume Institute Gala (better know as the Met Ball) which celebrates the annual opening of the Metropolitan Museum's fashion exhibit at the Costume Institute in New York.
The title of this year's gala held on 7 May 2012 was "Schiaparelli And Prada: Impossible Conversations".
Many of the guests surprised in flamboyant creations, while others celebrated one of the night's honorees – Miuccia Prada – by donning Prada.
Beyoncé Knowles made a drastic entrance and showed off her post-baby body in a revealing but elegant Givenchy Haute Couture gown, which included a voluminous feathered train – a big trend on the night.
Younger sis Solange Knowles looked gorgeous and also on trend in a bright yellow peplum dress.
Take a look through the slide show to view some our favourite looks of the night.