Woonhak

BOYNEXTDOOR’s Woonhak: Profile, Biography, and Facts

BOYNEXTDOOR member Woonhak (Kim Woon-hak) is one of the six talented K-pop idols who make up the South Korean boy group under KOZ Entertainment, a label helmed by producer Zico and affiliated with HYBE Labels. Since debuting on May 30, 2023 with the single album Who!, Woonhak has grown into a recognizable face of the group’s “boy next door” concept, contributing to the group’s vocals, rap, and behind-the-scenes songwriting.

Early Life and Trainee Days

Woonhak is a member of the South Korean boy group BOYNEXTDOOR under KOZ Entertainment and serves as the group’s maknae, the youngest member of the six-piece lineup. Born Kim Woon-hak on November 29, 2006, in Suwon, Gyeonggi-do, South Korea, Woonhak grew up dreaming of becoming a singer and joined KOZ Entertainment as a trainee in 2020 after briefly missing his own audition and getting a personal callback from the agency. He trained for about three years before officially debuting with BOYNEXTDOOR on May 30, 2023, through the single album Who!. Despite being the youngest, Woonhak has become one of the group’s most actively involved songwriters and producers, contributing lyrics and production to releases including the digital single If I Say, I Love You and the EP No Genre. He also built early individual recognition as a co-host of the music program Inkigayo alongside TXT’s Yeonjun and actress Park Ji-hoo. Known for his bright, expressive stage presence, clean vocal tone, and playful energy, Woonhak is often called BOYNEXTDOOR’s unofficial promoter for how enthusiastically he shares the group’s music with fans. As an ENFP, he is warm, cheerful, and deeply attached to his family, especially his younger sister. With BOYNEXTDOOR’s continued growth through 19.99, No Genre, The Action, and the studio album Home, Woonhak keeps developing his voice as both a performer and a behind-the-scenes creative force.

Career with BOYNEXTDOOR

As part of BOYNEXTDOOR, Woonhak has promoted through the group’s full discography, from the “First Love” trilogy of Who!, Why.., and How? to later releases like 19.99, No Genre, The Action, and the group’s first studio album Home. Fans of the fandom ONEDOOR continue to follow Woonhak’s growth as a performer through comebacks, world tours, and variety content.

Personality and Fun Facts

Beyond the stage, Woonhak is known among ONEDOOR and fellow members for a distinct personality and set of hobbies detailed further in the trivia section below. From personal habits to behind-the-scenes stories, these details help fans get closer to who Woonhak really is outside of BOYNEXTDOOR’s music and performances.