@ellemagazine: @MONCLER knows how the throw a #NYFW party. Tonight on Fifth Avenue, the brand celebrated the opening of their New York flagship, with @Serenawilliams, #AdrienBrody, #GeorginaChapman, @Jessica Chastain, #FrancoisArnaud, @AdrianaLima, @GavinCasalegno, and more.