Rooney Mara at the Met Gala 2013

Rooney Mara's Champagne Sipping Met Gala Night

Rooney Mara's Champagne Sipping Met Gala Night

Rooney Mara made a grand entrance in a white Givenchy gown at Monday's 2013 Costume Institute Benefit at the Metropolitan Museum of Art in NYC. She served as a cochair for the event alongside Givenchy designer Riccardo Tisci and Anna Wintour. Rooney and Riccardo walked the red carpet together and continued the fun at the afterparty, where they drank champagne and celebrated with Lauren Santo Domingo.

Don't forget to weigh in on Rooney's look and more in our 2013 Met Gala red carpet polls.

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