What Lies Beneath?\nFor some of the world's best-dressed women, the answer is nothing. We get to the bottom of the underwear-free trend.\nJane Birkin’s sheer nerve, 1969.Photo: Getty ImagesRead the full story here.\nKate Moss at her 19th-birthday party, New York, 1993. Photo by Weiss/Conde Nast.Read the full story here.\nCara Delevingne hanging out in Burberry Prorsum, in May. Photo by Getty Images.Read the full story here.\nJenna Lyons takes the plunge, 2012.Read the full story here.\nAnne Hathaway's Pointy Prada, in February. Photo by Getty Images.Read the full story here.\nRosie Huntington-Whiteley's side boob in Gucci, 2012.Read the full story here.\nGwyneth Paltrow's big reveal, in April. Photo by Getty Images.Read the full story here.