Rosie Huntington Whiteley dazzled in Valentino, carrying a Jimmy Choo clutch.

Brooklyn Decker sexed up the Vanity Fair party in a Joy Cioci gown.

Jessica Szohr rocked a Gossip worthy Chris Benz frock.

Taylor Swift sizzled in a Zuhair Murad mini dress, rocking Jimmy Choo glitter pumps and a candy clutch.

Naomi Watts rocked a totally hot Zac Posen gown from the Spring 2011 collection.

Selena Gomez and Justin Bieber were a well dressed duo, both turning to Dolce & Gabbana to glam them up for Oscar night.

Jessica Biel stunned in a Versace double strap beaded gown.

Kelly Lynch kept it simple in a one-shoulder Lanvin gown from the Spring 2011 collection.

Anna Paquin looked red hot in Monique Lhuillier, carrying a Judith Leiber clutch.

Leslie Mann showed off her hot bod in a Versace strapless gown in a rich Bordeaux color.

Emma Stone wore an eccentric Chanel mini with Salvatore Ferragamo platforms.

Cameron Diaz sizzled in Carolina Herrera, rocking Jimmy Choo peep-toes and a Lanvin cuff.

Gwyneth Paltrow showed some shoulder in a gorgeous nude, Michael Kors gown.

Elizabeth Banks rocked an uber short Versace vintage sleeved dress with Jimmy Choo Viola sandals.

Charlize Theron looked white hot in Versace, finishing the look off with Roger Vivier sandals and Neil Lane bling.

Camila Alves brought out the bombshell, wearing a Marchesa highneck and longsleeve gown, which was gorgeously embroidered.

Claire Danes was sleekly styled in a Calvin Klein collection.

Ginnifer Goodwin radiated in a Erdem mini dress and Brian Atwood pumps.

Anne Hathaway stunned in a Bordeaux Atelier Versace gown.

Marisa Tomei rocked a hot pink one-shoulder gown with a Cartier clutch.

Emma Roberts dazzled in a Jenny Packham gown, Brian Atwood pumps and Neil Lane bling.

Ann Kendrick also indulged in the red trend, wearing a Notte by Marchesa strapless with Christian Louboutin peep-toes.

Heidi Klum showed off her supermodel bod, rocking a Julien Macdonald gown with Christian Louboutin heels, Lorraine Schwartz jewels and a Judith Leiber clutch.

Odette Yustman radiated in Monique Lhuillier.

Petra Nemcova glittered in Gilan.

Hayden Panettiere rocked a white hot Luca Luca gown with Jimmy Choo platforms and Sutra jewels.

Kim Kardashian showed off her covetable curves in J. Mendel.

Ashley Tisdale sparkled in Jenny Packham.

Nicole Richie rocked a white hot cutout dress.

Vanessa Hudgens rocked a Marchesa mini with Sergio Rossi platforms.

Kerry Washington rocked metallic a la mode.

Chaka Khan definitely upped the wacky factor.

Liz Tyler looked sexy in a strapless gown.

Sofia Vergara showed off her hot bod in smashing style.

Lea Michele wore a striking, high-necked navy gown.