The March 6 episode of MBC Every1's 'Video Star' welcomed the first generation idol group as the guest. 

While talking about his past hardships, Lee Sung Jin revealed, "As a meaning of reflection, I lived in a container box at a fishing pier. Out of 24 hours (in a day), I drank 20 hours."

He continued, "I woke up in the morning and there was a water fog. And I heard a voice telling me to come in. I kept hearing it so I made the severe decision but it didn't work out and I lived. A dongsaeng I know suggested that I move out so I left the fishing pier."

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Lee Sung Jin shared, "After that, I got myself together and started exercising. I withstood the (hard) time and now I'm here."

Back in 2010, Lee Sung Jin was arrested for scam and gambling.