Moon Su-ah is a South Korean rapper and singer managed by MYSTIC Story. She is a member of the girl group Billlie. She is best known for being a former YG Entertainment trainee and a contestant on the competition show Unpretty Rapstar 2.
Moon Su-ah is a South Korean rapper and singer managed by MYSTIC Story. She is a member of the girl group Billlie. She is best known for being a former YG Entertainment trainee and a contestant on the competition show Unpretty Rapstar 2.
