The American Idol winner has always been husky, but with his weight reportedly closing in on 400 lbs. at the time, friends and doctors were worried that he had become morbidly obese. The 33-year-old singer, dubbed the "Velvet Teddy Bear" on AI, blamed his spiraling health on stress from his divorce and finances. Years later, the singer appeared on popular weight-loss reality show The Biggest Loser and, though he was eliminated, has since dropped more than 120 pounds to date. Way to go, Ruben!