Kim Jun-seo

Born November 20, 2001 · Ulsan, South Korea

Kim Jun-seo, known mononymously as Junseo, is a South Korean singer-songwriter, rapper and actor under OUI Entertainment. He is the maknae of the boy group WEi, a member of the project boy group ALPHA DRIVE ONE, formed through the 2025 reality competition show Boys II Planet, and a former member of the project group 1THE9.