Playback (플레이백) is a five-member girl group under Coridel Entertainment. They debuted on June 25, 2015 as a four-member group with the single "Playback". On April 13, 2017, it was announced that Eunjin, who left before their debut, would be joining the group.
- Yena (예나) - lead vocalist
- Hayoung (하영) - main rapper
- Soyun (소윤) - main dancer, sub-vocalist
- Woolim (우림) - leader, main vocalist
- Eunjin (은진) - vocalist, maknae