StellaMcCartney's Fashion's Night Out shindig was hosted by, as Mr. Mickey would say, a "cavalcade of cuties," including fashion plates Alexa Chung, Dree Hemingway, Eletrra Wiedmann and Jen Brill, who DJd to a lively but sweaty crowd (the AC was broken). Despite the heat, Chung,wearing a floor-length dress embroidered with bows from McCartney's recentresort collection, kept spirits high with oldies like "Runaround Sue" and"Twist and Shout." Meanwhile, the gorgeousWiedemann chatted with pinot grigio-guzzling guests as she waited for her turn in the DJbooth. And what would her set include? "Old school hip-hop."Sounds good to us!

PAPERMAG's Complete Spring 2012 Fashion Coverage