"Dancing with the Stars" is back with an all-new cast and fresh show format. The competition begins with the two-hour season premiere. "Dancing with the Stars" will shake things up this season by transitioning to a one night, two-hour format. The premiere episode will kick off with a spectacular opening number featuring the entire cast. Each couple will then perform a Cha Cha, Foxtrot or Contemporary routine, vying for America's vote for the first time. Beginning with the second episode on Monday, September 23, one couple will be eliminated at the end of the show by combining the judges' scores from the first two weeks with the public votes from the previous week.