A new, dynamic cast of celebrities are ready to hit the ballroom floor. The competition begins with the two-hour live season premiere (which is also the show's 400th episode!). Each couple will perform a tango, cha cha, salsa, Viennese waltz, and qui... (more)ckstep, vying for America's vote for the first time. At the end, the show paid tribute to Season 11 contestant, Florence Henderson who died three days after last season's finale.