As we reported earlier today, for her very first outing on ABC's dance competition series "Dancing with the Stars," Bristol Palin, daughter of former Alaska Gov. Sarah Palin and America's Most Famous Unwed Teen Mom, will do the Cha Cha to "Mama Told Me (Not To Come)." [Insert your double entendre joke here.] Here's a preview of the hit Three Dog Night tune from 1970: Music