Seo Hyun-jin (born February 27, 1985) is a South Korean actress and singer. Seo debuted as the vocalist of South Korean girl group M.I.L.K. in 2001 and continued until the group disbanded in 2003. She contributed songs as a solo artist after the group broke up before she transitioned into acting in 2006. Seo made her acting debut in the musical The Sound of Music (2006) then followed by appearances... see more