To close out Paris Fashion Week, Marc Jacobs partied with a handful of his fashionable, A-list friends including Kristen Stewart, Gwyneth Paltrow, and Sarah Jessica Parker to fete the launch of his new exhibition at Musee des Arts Decoratifs called "Louis Vuitton — Marc Jacobs: The Exhibition." The two-floor exhibit showcases an entire floor of original Louis Vuitton, and the second floor features designs that Marc Jacobs has created for the brand. Wearing a black Louis Vuitton suit, Gwyneth revealed that she tends to stick to menswear-inspired pieces because of her long, slender frame, saying she doesn't have Sofia Vergara's curves. Curves or not, we think Gwyneth is always dressed to perfection. Watch today's Fab Flash to see all of the looks! On Allison McNamara: Marni for H&M top, Lanvin for H&M lipstick.