Star vocal trainer Kim Sung Eun became popular after her appearance on 'Produce 101'. She has been teaching a lot of idols in her career, and she chose two that stood out the most to her in an interview with Sisun News!
When asked which stars and episodes she remembered the most during her teaching career, she said, "The first is BTS' Jin. One day, Jin suddenly sent me a song. He said, 'Teacher, this is a song you used as a lesson before. I tried recording it for real this time. Didn't I get a lot better at singing?' He was so amazing. Actually, that song doesn't have a proper MR, but Jin made an MR for himself and recorded it properly in a studio. I cried so hard at 3AM listening to that song. Jin is an amazing person. Even now, when BTS has a concert, he invites me whether it's in Korea or overseas.