Sixteen celebrities are competing for the Len Goodman Mirrorball Trophy , with the two night premiere airing Tuesday, September 15 and Wednesday, September 16 at 8 p.m. Eastern on ABC and Disney+ . Jenna Dewan is a trained dancer. Before The Rookie , she worked as a backup dancer for Janet Jackson and starred in Step Up , and she later hosted World of Dance . Whatever the show does with her, she...
