Kang Young Hyun, popularly known by his stage name YoungK, is the Bassist, Lead Vocalist, and Main Rapper of the Boy Band Day6 under JYP Entertainment. YoungK was born and raised in Korea but moved to Canada in High School where he used his English name Brian Kang.
On September 7, 2015, he made his debut as a member of Day6 and released their debut EP, The Day, with the lead single "Congratulations".
On September 6, 2021, Kang made his solo debut with the extended play Eternal and its title track "Guard You".
On August 16, 2021, Young K announced that he will enlist as part of his mandatory military service on October 12, 2021, where he will be serving in KATUSA.