The runways in Paris were filled with unexpected surprises and some very special appearances. Karolina Kurkova and Alessandra Ambrosio traded their Victoria's Secret wings to open and close for Giles, respectively. Casting director Michelle Lee at Louis Vuitton brought out French top model Laetita Casta to open, while supermodel Elle Macpherson closed. Meanwhile, Karlie Kloss held on to her opening slots at Christian Dior and John Galliano from last season. But it's rising star Jac who wins by a landslide. After sitting out the past two seasons of Paris Fashion Week owing to age restrictions, the 16-year-old became the most requested model of the week. She booked the opening looks at Celine, Lanvin, Pedro Lourenço, and Thierry Mugler, and closed for Valentino, Cacharel, Giambattista Valli, Nina Ricci, and Hermès. View our slideshow for all of Paris's openers and closers.