Choi Jung-in (Korean: 최정인; born December 7, 1980), also known mononymously as Jung-in, is a South Korean singer of Jungle Entertainment. She debuted in Leessang's "Rush" and was once part of the five-member group G.Fla until disbanding after three years. Her first album From Andromeda was released on March 11, 2010. On April 5, she released Melody Remedy. She is a former elite swimmer.