'Idol' winner Ruben Studdard now 'Biggest Loser' - Article Photos 1/1

This image released by NBC shows, from left, David Brown, Ruben Studdard, and Hap Holmstead on "The Biggest Loser," in Calbasas, Calif. Studdard, the season two winner of "American Idol" is the 15th season’s heaviest contestant at 462 pounds. “The Biggest Loser” returns Oct. 8 at 8 p.m on NBC. (AP Photo/NBC, Trae Patton/NBC)