Oh Jin-seok is a talented South Korean singer, dancer, actor and model who gained public recognition on the Mnet show Dancing 9 in 2013. After Dancing 9, he transitioned into acting, appearing in various productions including the Netflix series Mask Girl and the drama Heavenly Idol. He also pursued his musical career, releasing music under the stage name O.B.O.N. and performing on platforms like his personal YouTube channel.

He Appeared on survival show Boys24. He was a member of Unit Yellow on Boys24 and the Main Rapper of Unit Black before leaving the show early. Jinseok also debuted as a solo artist with the song "Good Time" in 2019 and was a trainee at YG Entertainment prior to his career.