With a week to go before the start of New York Fashion Week, the pretty young things are getting a head start at staying up late. Dior Beauty brought its Poison Club, a one-night-only soiree celebrating its latest fragrance, to New York hot spot and cool-kid staple Up & Down. Hosted by Camille Rowe, the evening’s invite might have called for everyone to come at 9:30, but the party was only getting started by 11:00. Bella Hadid, with brother Anwar, exchanged kisses and hellos with author and actress Keke Palmer, while Dianna Agron, Laura Love, and Rose Gilroy took in the graphic ambience and sweetly scented air. As the night progressed, the fete migrated to the club’s downstairs level, where the dancing lasted well into the wee hours. Perfect prep for the Fashion Week set.