Song Ji Eun is a South Korean singer who is best known for being a member of the K-pop girl group Secret. Born on May 5, 1990, she also is known simply by the name Jieun. As a music trainee, Song Ji Eun sang some soundtracks for television dramas in 2007 and 2008 prior to her debut with Secret in 2009. She also made her solo debut in the same year. Song Ji Eun began making cameos on television dramas starting in 2010 and made her acting debut in the 2013 drama “A Bit of Love.” She had her first starring role in the 2015 drama “Immutable Law of First Love.”