The Metropolitan Museum of Art Costume Institute gala

Giancarlo Giammetti, Sarah Jessica Parker and Valentino Garavani attend the “Schiaparelli and Prada: Impossible Conversations” Costume Institute Gala at the Metropolitan Museum of Art in New York City. It’s more commonly known as the Met Gala.   (Larry Busacca / Getty Images)

Lea Michele  (Larry Busacca / Getty Images)

Beyonce Knowles   (Dimitrios Kambouris / Getty Images)

Kristen Stewart  (Charles Sykes / Associated Press)

Amy Adams   (Dimitrios Kambouris / Getty Images)

Scarlett Johansson   (Timothy A. Clary / AFP / Getty Images)

Rihanna  (Timothy A. Clary / AFP / Getty Images)

Gwyneth Paltrow   (Charles Sykes / Associated Press)

Shailene Woodley  (Larry Busacca / Getty Images)

Kristen Wiig   (Dimitrios Kambouris / Getty Images)

M.I.A., designer Stella McCartney and Cameron Diaz   (Larry Busacca / Getty Images)

Mary-Kate Olsen  (Dimitrios Kambouris / Getty Images)

Sofia Vergara  (Dimitrios Kambouris / Getty Images)

Rosario Dawson  (Larry Busacca / Getty Images)

Dakota Fanning   (Larry Busacca / Getty Images)

Rooney Mara  (Larry Busacca / Getty Images)

Emma Stone  (Larry Busacca / Getty Images)

Bruno Mars  (Dimitrios Kambouris / Getty Images)

Alicia Keys and Swizz Beatz   (Larry Busacca / Getty Images)

January Jones  (Charles Sykes / Associated Press)

Hilary Swank and Jessica Alba   (Dimitrios Kambouris / Getty Images)

Chelsea Clinton   (Larry Busacca / Getty Images)

Kanye West   (Larry Busacca / Getty Images)