Olympians, child stars, and more! See which celebrities and their professional dance partners will be competing for the Mirror Ball trophy on Season 18 of the ABC reality competition show, Dancing With the Stars -- and see how they look in their sexy dance costumes
Diana Nyad and Henry Byalikov
The world record long-distance swimmer isn't very confident about her chances of winning the Mirror Ball trophy. "The absurd thing is that in my little circle of friends, I'm the dancer," she said on GMA. "Now that I'm here . . . I'm so miserable at this, it's beyond words."