Andres Otero/WENN.com

WHAT SHE WORE At the Costume Institute Gala, Mara piled on the Jennifer Meyer and Fred Leighton rings to complement her plunging Givenchy gown.

CELEBRITY: Rooney Mara

DESIGNER: Givenchy

TREND: White

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Rooney Mara

Rooney Mara went punk in Givenchy's white

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