Lee Jae-hoon Lost 10 kg in Just 3 Weeks… '8 kg Weight Loss' Sung Si-kyung: 'You Have to Be Unhappy to Lose Weight' (The Seasons - Sung Si-kyung's Ear-Drum Boyfriend) [Caught on Camera]

[OSEN=Reporter Kim Na-yeon] Cool's Lee Jae-hoon shared an update after losing 10kg.

On the 3rd broadcast, KBS2's 'The Seasons - Sung Si-kyung's Gomak Namchin' featured singer Lee Jae-hoon as a guest.

That day, Sung Si-kyung, seeing the slimmer Lee Jae-hoon, said, "What's surprising is that last year in Jeju-do we felt like a plump amberjack with a chubby belly."

In response, Lee Jae-hoon revealed, "That's why I refused to appear on the show." Sung Si-kyung said, "That's right. Back then, hyung was going to do something but he said, 'I don't think fans should see me yet.' He's really ruthless. What's your diet secret? I also lost about 8kg in two and a half months," updating on his diet.

Then Lee Jae-hoon joked, "I lost 10kg in just 3 weeks. I dieted for last year's concert and succeeded, losing 10kg, and people said I looked like I did at debut, which made me very happy. So I said let's try to lose another 10kg for this year's concert, and they said then you'll look like retired," he quipped, bringing laughter.

Sung Si-kyung said, "What is certain is that you seem to lose weight only when you're unhappy. There's no such thing as losing weight while being happy," and added, "But it's really great. Truly amazing." Lee Jae-hoon expressed his view, "Sung Si-kyung doesn't look that happy these days either. But by being unhappy himself, doesn't he make many people happy?" which drew cheers.

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[Photo] KBS2