정제원

정제원 · 원 · 郑帝元

Jung Jae-won, better known by his stage name One, is a South Korean rapper, singer, songwriter and actor. He debuted in 2015 as a member of the hip-hop duo 1Punch with Kim Samuel but later One moved to YG Entertainment from D-Business Entertainment following the group's disbandment in September that year. He is also known for his appearances on the fourth and fifth seasons of Show Me the Money.