Mila Kunis wore a purple dress from Prabal Gurung's spring 2012 collection to St. Jude Children’s Research Hospital’s 50th Anniversary Gala in Los Angeles on Saturday. She completed her look with Elie Saab shoes, a Killian clutch, and Pomellato jewelry.

This is one of the first times we've seen Prabal's latest collection on the runway — how does Mila look in the lace-up bodice?