Wondering how TV primetime soap stars stay so slim? Insiders say stars like Lisa Rinna, Tori Spelling and Josie Bissett are absolutely addicted to a new workout craze called "firing." Created by a Hollywood gym called Critical Mass, the workout begins with a drink that's a mixture of nutrition bars, coffee, hot chocolate and ice. Then, the stars watch horror movies until their hearts are pumping at max capacity, before beginning their workouts. Sounds crazy, but it works!