QUESTIONMARK (퀘스천마크) 퀘스천마크 / QUESTIONMARK Active Üyeler (4) Moon Ji Won (제이문) Drummer Lee Byungjae (빈첸) Vocalist. Guitarist Baek Byeong Hak (니온) Guitarist Lee So Sang (이소상) Bassist Bias'ın kim? Moon Ji Won (제이문) Oy Ver 0% Lee Byungjae (빈첸) Oy Ver 0% Baek Byeong Hak (니온) Oy Ver 0% Lee So Sang (이소상) Oy Ver 0%
