Hong Seong JunFull Name:Hong Seong JunKorean Name:홍성준Company:Brand New MusicCountry:South KoreaAge:21Height:175Weight:55Hong Seong Jun (홍성준, Hong Seongjun) is a South Korean trainee from Brand New Music.Interests / Hobbies: Exercising, gaming, watching movies, playing with friendsSkills: Guitar, melody makingRanking:Official ImagesHong Seong Jun Produce X 101Hong Seong Jun Produce X 101VideosOfficial IntroductionMore Produce X 101 ContestantsKim Seung HwanKim Seung HwanLee Won JunLee Won JunUehara JunUehara JunKang Hyeon SuKang Hyeon SuPark Jin YeolPark Jin YeolLee Gyu HyungLee Gyu HyungRelated