One of the best things about hiring Kate Moss for your campaigns is that she also shows up at your parties, thereby cranking up the status from "event" to "rollicking blowout where no one observes non-smoking laws." Longchamp hosted the latter at their new flagship on Saturday, while celebrities were in town for London Fashion Week, and Moss showed up in shorty-shorts, sheer tights, a sequined sweater cinched with a sassy waist belt, and a teal clutch purse grasped in her right hand.
Of course, wherever Moss goes, other famous Brits follow: Mick Jagger and L'Wren Scott also showed up (him in robin's-egg blue, her in gold brocade), and Lily Cole arrived in a pair of mesmerizing snake-print leggings. Other Longchamp face Coco Rocha was there, too, in addition to the usual suspects like Alexa Chung, Leigh Lezark, and Daisy Lowe, whose coat literally swept the floor. Click through our slideshow to see the cream of London's fashion celebrity lineup; only one more day of shows in the U.K. until we're on to Milan.BEGIN SLIDESHOW