Vernon

On April 19, 2015, Vernon was introduced through a video teaser as one of the 13 members of Pledis Entertainment's newest boy group SEVENTEEN. The group would be introduced through the reality program Seventeen Project – The Debut Mission. On May 26, he debuted with the group with their first mini album 17 Carat.

On July 11, Vernon released his first solo track, "Lotto". On December 15, a teaser photo was released announcing that Black Eye would be released on December 23, 2022. In February 2024, KOMCA announced that Vernon has been promoted to full membership in the Korea Music Copyright Association.