POLL: Who Was the Hottest Couple at the Met Gala?

By Eunice Oh

05/04/2010 at 06:10 PM EDT

Sky-high heels and flashy jewelry may have complemented the designer gowns at Monday's Met Costume Institute Gala, but perhaps the best accessory for some of Hollywood's leading ladies? Their dates!

Jessica Biel enjoyed fashion's biggest night with longtime boyfriend Justin Timberlake, who donned a tux from his own William Rast line, while she channeled Old Hollywood glamour in a silk charmeuse gown.

Sienna Miller made a statement in a low-cut lace Pucci dress but got more buzz by bringing on-again beau Jude Law to the fete, which celebrated the Metropolitan Museum Costume Institute's "American Woman: Fashioning a National Identity."

What do Gisele Bündchen and Naomi Watts have in common? Both of their guys, Tom Brady and Liev Schreiber, suited up in Tom Ford tuxes, while they chose different designer duds – Bundchen in a daring leather mini while Watts wore a raspberry one-shoulder gown.

Naomi Watts and Liev Schreiber, Gisele Bündchen and Tom Brady, Gwen Stefani and Gavin Rossdale

Stephen Lovekin / Getty, Evan Agostini / AP, Larry Busacca / Getty

Gwen Stefani left the kids at home and lit up the red carpet in gold '30s-inspired gown from the singer's own L.A.M.B. collection with husband Gavin Rossdale by her side. And Diane Kruger was white hot in a simple Calvin Klein number while on the arm of boyfriend Joshua Jackson.

Tell us, who do you think was the hottest belle and beau of the ball?