Costume Institute Gala Turns out the Brightest Stars in Fashion For Charity.

Even with the rain, the stars shone bright Monday night at the Costume Institute's gala at the Metropolitan Museum of Art.

Models and the hottest celebs turned out in droves to celebrate "The Model as Muse" exhibit.

There was Gisele Bundchen and Chanel Iman, along with Victoria Beckham, Jessica Alba (in Michelle Obama favorite Jason Wu), Renee Zellweger (in Carolina Herrera), Eva Mendes (in Calvin Klein) and Eva Longoria, wearing Diane von Furstenberg.

Chairing the event were Marc Jacobs, Kate Moss and Justin Timberlake, who rocked a pair of geek-chic specs (and girlfriend Jessica Biel).

Heidi Klum, pregnant with her fourth child and wearing J. Mendel, promised to wear "high heels in the delivery room."

Tyra Banks wore Badgley Mischka, and Rachel Roy dressed India-born Lakshmi Menon.

Kanye West helped deflect reports he's broken up with model Amber Rose by making a show of support - literally, gripping her as she teetered and adjusting her dress.

Model behavior, indeed.