Christie Brinkley is off “Dancing with the Stars” before the show’s new season even started. The 65-year old supermodel reportedly broke her arm during rehearsals. Producers scrambled to replace her, and they quickly settled on her lookalike daughter, Sailor. Sailor, 21, had just three days to learn a routine for the show’s live premiere. She donned her mother’s blue sequin dress, which reportedly required no alterations.