Kedeheon Jae, SM trainee, wept after terminating his 12-year contract..I'm hurt a lot by K-pop. I resent you

By YoonSeon, Cho

Oct 21, 2025

Kedeheon Jae, SM trainee, wept after terminating his 12-year contract..I'm hurt a lot by K-pop. I resent you



Lee Jae, the composer and singer of the OST 'Golden' of the Netflix animation 'K-pop Demon Hunters' (hereinafter 'Kedeheon') showed tears as he recalled his days as a trainee at SM.

On tvN 'You Quiz on the Block' on the 21st, a video of 'Lee Jae-jae's story of becoming a global star was posted from the behind-the-scenes of the Jimmy Fallon show, where Scarlett herself also took the mound.

In the video, Lee Jae revealed the behind-the-scenes story of the popular NBC talk show 「The Tonight Show Starring Jimmy Fallon」 that aired on the 7th (local time).




Jae-jae "Honestly, I was really stressed. I'm not lying, I lost my voice in the morning. I was wondering what to do during the rehearsal", he confessed his nervous moment. It also drew attention because there was also a family of Hollywood actor Scarlett Johansson at the scene at the time.

Lee Jae, who has been a SM Entertainment trainee for the past 12 years, "I did it for a long time. SUPER JUNIOR, Girls' Generation, SHINee, f(x) and "We worked really hard," he recalled.

Kedeheon Jae, SM trainee, wept after terminating his 12-year contract..I'm hurt a lot by K-pop. I resent you
He was in tears in the taxi back home. I thought I couldn't do it even though I worked hard"I was just so sorry. I wanted to be a singer for so long, but I hated myself for not being able to achieve that dream"Wept. Then "I woke up crying and sleeping for a month and there was a lot of resentment towards idols or K-pop. He confessed that he had been hurt a lot."




However, Lee Jae-jae, who did not give up on music even after his trainee days ended, thought, "I like music, so let's try making it." I kept making beats from the cafe opening to the closing" he said.

As a result, Lee Jae created hits such as Red Velvet's 『Psycho』, Espa's 『Drama" and 『Armageddon"』. Since then, it has been a worldwide success, topping the main Billboard single chart 'Hot 100' for eight consecutive weeks with the OST 'Golden' of 'Kedeheon'.

Lee Jae-jae, who also wrote the lyrics for 'Golden', said "The most impressive thing was that there was a singing long event this time. It was really fascinating that the children of all countries 'Unbreakable' lyrics in Korean. "I wanted to add Korean so badly. (People) sang it in Korean, so I was very proud and proud."






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