 some of the truly beloved celebrities that we lost over the weekend. On Saturday, fitness guru Richard Simmons died at the age of 76. And also actor Shannon Doherty of Beverly Hills 90210 fame lost her battle with cancer also on Saturday. She was just 53 years old. We're also remembering pioneering sex therapist Dr. Ruth Westheimer, who died on Friday. She was 96 years old. Dr. Ruth,