[6] In 2011, he received a presidential commendation from the South Korean government for his contributions to popular culture.

[1] He was interested in music from a young age and started playing the piano when he was four years old.

Kim married pianist Jang Ji-yeon in 2019, whom he met through a mutual friend.

[13] On December 8, 2019, lawyer Kang Yong-suk announced that he was representing a woman who alleged that Kim sexually assaulted her.

[14][15] In 2022, the Seoul High Prosecutors' Office dismissed the rape charge against Kim.