Seo Eunkwang (서은광; or Eunkwang) is a South Korean singer under Cube Entertainment. He is the leader of the boy group BTOB and its sub-units BTOB-BLUE and BTOB 4U.
He made his solo debut in June 8, 2020 with the mini album FoRest: Entrance.
- "Mask OST" ("참 그립다" (with Miyu)) (2015)
- "Queen of Mystery 2 OST Part.4" (2018)
- His MBTI personality type is ISFP.