NYFW has officially started, which can only mean one thing (aside from all the fashion, obviously)… parties! Last night's annual amfAR Gala in New York, which raises funds for AIDS research, brought out some of the city's coolest girls, including model Chanel Iman (who turned up with beau A$AP Rocky) and model-slash-DJ Atlanta de Cadenet, who wore the most amazing metallic gown. If these red carpet snaps are anything to go by, this season's frocks are all about fresh takes on monochrome classics and, you know, having a good time. Check them out below—and bring on Fashion Week!