Moon Byul is a South Korean rapper, singer, actress, and TV personality who was born in Bucheon, South Korea, on December 22, 1992. She studied at the Paekche Institute of the Arts and made her debut as a member of the all-female K-pop act Mamamoo in June 2014, following up in 2015 with her acting debut in the drama series “Start Love.” In May 2018, she released her debut solo single "Selfish,” which featured vocals from Red Velvet’s Seulgi. She has also appeared in a number of variety TV shows, such as “In Sync” (2019).