2017–2018: Produce 101 and MXM In mid-2017, Kim participated in the
Produce 101 Season 2, a
reality competition show designed to form a temporary
boy group consisting of 11 members chosen by the public from 101 contestants. He represented
Brand New Music along with three other trainees. He was eventually eliminated from the show, finishing in 28th place overall on episode 10. On July 12, 2017, Brand New Music announced that Kim and Lim Young-min, one of his agency mates who also joined
Produce 101, would make their debut as a project
duo and pre-released a debut single within the same month before releasing an
extended play in late August. The project unit name is revealed to be
MXM, which was an acronym for "Mix & Match". They released their debut single,
Good Day on July 27 which included the title track and "I Just Do", a song that was co-produced by Kim. A few weeks later, on September 6, they released their debut EP,
Unmix. On March 15, 2018, he starred as a male lead in the music video for Lee Kang's song "In Vain (feat.
Yang Da-il)". He also appeared as a cameo in
Gree's music video for the song "Dangerous".
2019–present: AB6IX and solo activities In early 2019, Brand New Music announced that Kim along with his fellow
Produce 101 trainees and an addition of one other trainee would join the lineup for the agency's new boy group named
AB6IX. On May 22, the group debuted with their EP,
B:Complete which included "Shining Stars", a song that was co-produced by Kim. In early 2021, Kim starred as one of male lead in a web series called
Fling at Convenience Store. He also sang the soundtrack for the series, which was co-produced by him. In April 2021, Kim was confirmed to be part of the cast for the
SBS television series
Let Me Be Your Knight. He will play the role of Woo Ga-on, the keyboardist and youngest member of LUNA. == Discography ==