One

Jung Jae-won (Korean: 정제원; born March 29, 1994), better known by stage name One (stylized as ONE), is a South Korean rapper, singer-songwriter, and actor. He debuted in 2015 as a member of the former hip-hop duo 1Punch with Kim Samuel. The following year he moved to YG Entertainment from D-Business Entertainment. In 2019, Jaewon left YG Entertainment and since moved under his own record label Private Only. He is well known for appearing on the fourth and fifth season of Show Me the Money, as well as appearances on dramas such as A Korean Odyssey (2017), Room No. 9 (2018), and Her Private Life (2019).