Park Yeeun

On March 3, 1999 she made her debut as a member of CLEO with their self-titled studio album Cleo. She later left the group in early 2000, which she later explained in 2013 was because she neither liked the group's concept nor was interested in being a celebrity. After leaving CLEO, she left the entertainment industry and started a shopping mall business.

She also worked as a VJ in the US. On January 22, 2013, she made her solo debut with the digital single "그놈의 사랑". On April 24, 2013, she formed a duo named The Second Fact with composer Ji Juhyeon, under the stage name Left D, and made her debut as a member of the duo with the digital single "믿을 수 없는 전화".