Emma Stone, the 23-year old fashion icon, arrived at the 2012 Vanity Fair Oscar Party held at Sunset Tower on Sunday in West Hollywood, Calif. February 26.

The black Chanel Counture dress showing her legs in the sheer design marked the second stunning look of the night, following the red Giambattista Valli Couture gown she took to the red carpet. The Help starlet presented an award with Ben Stiller at the Academy Awards earlier in the evening.

The annual Vanity Fair Oscars after-party gives stars a casual occasion to don their second look of the night. In the lingering excitement of the awards season's climax, over 400 bottles of champagne are emptied.

Take a look at other guests at the Oscar party below. Would this be the real trendsetters?

Jennifer Lopez rocked a Zuhair Murad gown.

Cameron Diaz went for a bold orange Victoria Beckham gown.

Felicity Jones sizzled in a Johanna Johnson black leather dress.

Kate Upton, The Sports Illustrated cover girl, stunned in a red gown and a black clutch, matching her blonde hair.