2010 Met Gala: Fashion's Biggest Party!

Hollywood's hottest stars – from Justin Timberlake and Jessica Biel to reunited flames Sienna Miller and Jude Law – celebrate the Metropolitan Museum Costume Institute's "American Woman: Fashioning a National Identity" in romantic, glamorous and daring looks

  • JESSICA BIEL AND JUSTIN TIMBERLAKE photo | Jessica Biel, Justin Timberlake

Credit: Stephen Lovekin/Getty

Updated: Tuesday May 04, 2010 | 09:50 PM EDT By: Melissa Liebling-Goldberg

JESSICA BIEL AND JUSTIN TIMBERLAKE

It's Old Hollywood come to life as Biel celebrates the silver screen siren in her slinky Ralph Lauren Collection silk charmeuse gown, accessorized with a clutch and heels from the designer with '20s Fred Leighton diamonds – and her dashing beau, Timberlake (in a William Rast tuxedo).