Now uses the stage name / tag: jungwooseok Jung Woo-seok, also known by the mononym Wooseok, is a South Korean rapper, singer, songwriter, model and composer. He debuted as a member of the South Korean boy group Pentagon in October 2016 and also formed a duo with Lai Kuanlin as Wooseok X Kuanlin in March 2019, under Cube Entertainment. After leaving Cube Entertainment in October 2023, he went on to begin a solo career and in June 2025 formed the rock band Kik.