Moon Byul

Moon Byul-yi (Korean: 문별이, born December 22, 1992), known professionally as Moonbyul (문별; stylized as Moon Byul), is a South Korean rapper and songwriter under RBW Entertainment. She is a member of the South Korean girl group Mamamoo and its sub-unit Mamamoo+. Moonbyul made her solo debut in May 2018 with the digital single Selfish. According to the Korea Music Copyright Association, she has songwriting credits on over 100 songs.