Jelly Roll has confessed he was terrified he only had "six to 12 months" left to live at his heaviest weight, RadarOnline.com can confirm, before the singer dropped an amazing 200 pounds .

The newly svelte singer has been open about his weight loss and admitted he didn't think he'd live past 40. Article continues below advertisement

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Jelly Roll, real name Jason DeFord, delved into his body transformation as a guest on the Joe Rogan Experience .

The hitmaker, who turned 41 on December 4, revealed he first really took his weight loss seriously two years ago, at age 39, because, "I knew my next one was 40… I don't think I've ever met a 500-pound 40-year-old."

The Son of a Sinner singer, who has ha

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