DANCING WITH THE STARS - "Episode 906" - It was a night of Waltz, Jitterbug and the first competition Mambo group routine, on "Dancing with the Stars," MONDAY, OCTOBER 26 (8:00-10:02 p.m., ET), on the ABC Television Network. (ABC/ADAM LARKEY) MELISSA JOAN HART, MARK BALLAS, DEREK HOUGH, LACEY SCHWIMMER, MYA, DMITRY CHAPLIN, LOUIE VITO, CHELSIE HIGHTOWER, KYM JOHNSON, DONNY OSMOND, LOUIS VAN AMSTEL, KELLY OSBOURNE