The pre-Met Gala parties are in full swing! Sunday, May 4 Olivier Rousteing teamed up with Johnnie Walker for an epic celebration of their recent collaboration during fashion’s biggest weekend in New York City. Lupita Nyong’o, Hunter Schafer, Priyanka Chopra, Nicky Hilton, Darren Criss, and more attended the exclusive affair which marked the debut of the Johnnie Walker Vault x Olivier Rousteing Couture Expression collaboration. See below for photos from the star-studded bash.