The cast of Season 17 of “Dancing With The Stars” is announced live on “Good Morning America,” 9/4/13, airing on the ABC Television Network. (ABC/Ida Mae Astute) KEYSHAWN JOHNSON, NICOLE “SNOOKI” POLIZZI, BILL ENGVALL, VALERIE HARPER, JACK OSBOURNE, CORBIN BLEU, CHRISTINA MILIAN, BILL NYE, ELIZABETH BERKLEY LAUREN, BRANT DAUGHERTY, AMBER RILEY