PLAYBACK Discography Playback Single / Debut Release date: June 25, 2015 Playback Playback (Inst.) I Wonder Collaboration / Single Release date: September 2, 2015 I Wonder (없을까?) (feat. Eric Nam) I Wonder (Playback ver.) I Wonder (Inst.) Untold Story Pre-release Single Release date: October 20, 2017 Untold Story (말하지 못한 이야기) Want You To Say … Continue reading PLAYBACK Discography