Ruben Studdard, American Idol winner, will compete on Biggest Loser

American Idol season two winner Ruben Studdard will be a cast member on The Biggest Loser‘s 15th season this fall. NBC confirmed that he’ll participate.

When he won the show, Ruben weighed over 400 pounds; he later became a vegetarian and lost almost 100 pounds in a weight management program. People recounts his struggle with weight over the years.

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