The 17th-season opener begins with 12 celebrities, including Valerie Harper, Leah Remini, Jack Osbourne, Elizabeth Berkley Lauren, Bill Nye and Nicole "Snooki" Polizzi. In a new twist, performance and results shows will be combined this season.
Another elimination occurs after the 10th week of performances, which features celebrities performing two different dances to the same song—one version being acoustic music. Also: Maksim Chmerkovskiy serves as a guest judge. Performers include Kerli and Noah Guthrie.