It was inevitable: Plus-size American Idol champ Ruben Studdard was hospitalized Monday in Alabama. A rep for his record label said Studdard — who was in the midst of a publicity tour for his new album, I Need an Angel — was suffering from exhaustion, although more tests are being performed. He'll likely remain in the hospital through the end of the week. Studdard recently embarked on a highly publicized low-carb, low-cal diet that was being chronicled by Extra. He allegedly shed 12 of his 449 lbs. when reports surfaced that he had given up. Things have gotten so bad that doctors are recommending he borrow Anna Nicole's intravenous TrimSpa drip.