Fashion photographer extraordinaire Mario Testino celebrated his first-ever US photography exhibition at the Museum of Fine Arts in Boston last night with some of his favorite models — Gisele Bündchen, Alessandra Ambrosio, and Karlie Kloss to name a few — and celebrity fans. Of course, everyone was dressed to the nines: Vogue's Anna Wintour made an appearance in Prada's Spring '13 collection and Olivia Palermo wore a gilded lace-and-fringe dress. The models? While Gisele kept it covered up in a one-shoulder black Halston dress paired with a satin Tom Ford blazer and patent Christian Louboutin pumps, her fellow catwalkers showed off their assets in a bevy of body-con, cutout, and thigh-grazing silhouettes. See every look in the slideshow now.