1. Playback (Korean: 플레이백) was a five member girl group under Coridel Entertainment. Playback's current lineup consists of Yena (예나), Hayoung (하영), Soyoon (소윤), Woolim (우림), & Eunjin (은진). They debuted on June 25, 2015 with the digital single "Playback". With the lack of updates on the group's SNS accounts since February 2018, Hayoung's removal from the company's website since 2019, Yujin signing with a new company in 2019