Fashion Week. We may say it's about the clothes (and for the most part, it is), but season after season it's the parties that get the most attention. After-parties, album launches, fall issue releases—you name it, industry people will celebrate it. This NYFW is already set to have some unforgettable bashes, from Lady Gaga performing at the Harper's Bazaar party to Joe Zee celebrating his new collab with Old Navy. Click through for all the details and don't forget to check back throughout the week for updates!