Get 4 FREE Issues of PEOPLE
Jennifer Lopez, Emma Stone and more had double the fashion fun, but which was the winning look? Weigh in now!
Credit: Jason Merritt/Getty; Michael Tran/Filmmagic
Updated: Monday Feb 27, 2012 | 12:00 PM EST
By: Zoë Ruderman
More from PEOPLE
See More News
Sacha! Michelle! George! See how the stars cut loose before the big show
5 of 6
The Modern Family starlet walked the red carpet in an asymmetrical dusty purple confection with a dramatic train, then changed into a sparkling, tea-length black frock, which she glammed up with red lips and stacked peep-toes.
Copyright © 2014 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.