American Express Platinum celebrated the grand opening of the highly anticipated EMP Summer House, the summer pop up restaurant from Eleven Madison Park. Guests were among the first to taste menu items including lobster rolls, fried chicken and Humm Dogs. A specialty Platinum Summer cocktail was served, and guests danced to a DJ set by Hannah Bronfman. Notable event attendees include Vanessa Hudgens, Austin Butler, Alec Baldwin, Hilaria Baldwin, Brad Goreski, June Ambrose, Brendan Fallis, Maxwell Osborne, Todd Snyder, Jessica Romm, Joanna Hillman, Christina Tosi and co-owners Chef Daniel Humm and Will Guidara.