Kim Jungwoo (김정우) is a member of NCT and it's sub-units NCT 127 and NCT 2018.
He was first introduced through SMRookies on April 18, 2017. In the same month, he appeared in SUPER JUNIOR Yesung's 'Paper Umbrella' music video, alongside former SMRookies member Koeun.
In January 2018, he alongside Kun and Lucas were announced to become members of NCT, through the 'NCT 2018 Yearbook'.
On February 19, 2018, he officially debuted as a member of NCT, in the unit NCT U, with the song 'BOSS'.
On October 12, 2018, he debuted as a member of NCT 127, with their full studio album 'NCT #127 Regular-Irregular'.