Born 정제원 (Jung Jaewon) in 1994, “원” (ONE) is a South Korean soloist rapper from YG Entertainment. Debuting July 2017 with single “ONE DAY”, ONE became the first solo male act from his label in 14 years.

Jaewon’s stage name formed from the last syllable of his given name, “원” (won) whilst he was still under Brave Entertainment. Together with Kim Samuel (“Punch”), he formed the duo 1PUNCH in 2015. However, after placing within the top 16 of hit reality TV show “Show Me the Money 4”, he signed a record deal with YG Entertainment and left the group officially.