People: Apr. 12, 1968

At first glance, it seemed a scene from a latter-day Dutch master painting —at least that's what Dame Margot Fonteyn said it was. "I feel like the Laughing Cavalier," Margot said, and, Frans Hals notwithstanding, she looked something like him, too, as she happily showed off her Yves St. Laurent jet-black velvet pants suit to a gaggle of photographers and admirers at the opening of Artist Keith Lancey's watercolor exhibit at London's Mayfair Hotel. Her outfit all but stole the show from the paintings, which was O.K. with the artist because she'll wear...