A tough-as-nails fitness trainer whose mission it was to make everyone in America healthy one couch potato at a time, Jillian Michaels burst onto the scene as the spitfire trainer on the reality competition series, "The Biggest Loser" (NBC, 2004- ). On the popular show, she whipped obese contestants into shape with rigorous exercise and diet programs, displaying little sympathy and zero tolerance for excuses. But as loud and demanding as she was on the show, Michaels' tactic proved very effective as she routinely trained the season's winner. From that jumping off point, Michaels quickly carved out a successful one-woman empire that included best-selling cookbooks, fitness DVDs, and diet supplements. She branched out and starred in her own reality series "Losing it with Jillian" (NBC, 2010- ), where she helped families on the verge of collapse get their lives on track and back on the road to a healthy lifestyle. Throughout her long career, Michaels served as an inspiration to millions of people aspiring to win the fight against obesity, and proved without a doubt why she deserved the title, "America's Queen of Lean."