In a "Dancing with the Stars" first, twelve celebrities attempt to outshine one another on a fifth season of the hit series. This marks the largest and most diverse cast assembled to date which includes an Emmy Award-winning actress, a Vegas icon, an Indy 500 champion, a Spice Girl, a daytime drama star, a Cheetah Girl and a former resident of "90210." As an added twist, viewers get a chance to size up the female vs. the male stars as each gender hits the dance floor on separate nights during the first week of competition.