Ballerina Maria Kousouni is used to an attentive audience. But when she stepped onstage in Paris this past July, her audience—not to mention the venue and the costumes—were a little unusual. After all, opening a couture fashion show for designer Celia Kritharioti during Paris Fashion Week—with British Vogue's editor in chief in the crowd—isn't exactly a typical gig. "I never imagined that I would be opening a haute couture fashion show in Paris," says KousounI, a principal dancer with the Greek National Opera Ballet. "To enter this world of fashion and beauty, which you usually admire from a distance, is a rare experience in a dancer's career."