Watch Dancing with the Stars Season 21, Episode 1 Online

The twelve celebrities and their partners perform live for the firs time hoping to impress the judges and the viewers at home. "Dancing with the Stars" is a series that pairs a celebrity with a professional dance partner as they train and then compete in front of a studio audience in a televised dance competition. The pairs will be judged by a panel of experts and also by viewers at home, with one couple being eliminated each week. In each round of competition, each couple will demonstrate how well their training and rehearsing has paid off, by performing a choreographed routine. At the end of each performance, judges will give each couple a score. At the end of the broadcast, viewers will be instructed on how to call in and cast their vote for their favorite couple. In the results show the next day, one couple will be eliminated. Season 13 is shaping up to be hotter than ever with a few new twists to go with all those tangos. New this season is a feature called the "Ballroom Battle”. We've seen how well the pros dance and teach, but this season we'll watch a couple trained by a pro go head-to-head with another pro's couple.