Play The Siren (hangul: 플레이더사이렌; stylized as PLAY THE SIREN) is a South Korean co-ed group under SM Entertainment's subsidiary indie label BALJUNSO. The group consists of Kasper, Siren, Squalla, Beckum, CJ & Chi Chi. They debuted on July 25, 2014 with single "Dream Drive (Feat. f(Luna))". A teaser for their upcoming comeback Green light was uploaded to YouTube on 19 April, 2015 before the official release on 27 April, 2015, this time with only 3 members: Kasper, Siren and Beckbum. Read more on Last.fm