Sayonara, summer! It's time to dive right into New York Fashion Week. While the shows certainly have us buzzing, everybody knows that it's the parties that really count. Want to know where all the best guests and well-heeled A-listers will be sipping champagne for the next week? Click through for our official party guide.

[Karlie Kloss courtesy of DVF Archive, photographed by Kelly Taub/BFA.com]