The Costume Institute's Gala Arrivals

Zac Posen & Lucy Liu
Jessica Simpson

Kate Bosworth
Lindsay Lohan
Molly Sims
Chloe Sevigny
Christina Ricci
Jennifer Lopez & Marc Anthony
Jennifer Hudson
Alicia Keys
Anna Wintour
Camilla Belle
Cate Blanchette
Cameron Diaz

Photos:wireimage.com