Oh Hae-won (오해원; born February 25, 2003), known mononymously as Haewon (해원), is a South Korean singer under JYP Entertainment. She is the leader of the girl group NMIXX.
Biography：Oh Hae-won (오해원; born February 25, 2003), known mononymously as Haewon (해원), is a South Korean singer under JYP Entertainment. She is the leader of the girl group NMIXX.
