Changsub (BTOB) Profile, Facts, and Ideal Type Changsub (창섭) is a member of the South Korean boy group BTOB under Cube Entertainment. He debuted as a soloist in June 7, 2017 with the EP “bpm 82.5”. Stage Name: Changsub (창섭) Birth Name: Lee Chang Sub (이창섭) Birthday: February 26, 1991 Zodiac Sign: Pisces Height: 178 … Continue reading Changsub (BTOB) Profile, Facts, and Ideal Type