the low note, the high notes... he can do it all  exo chen voice is unique and brilliant i can feel that from exo first song MAMA you can all watch the live performance of exo M MAMA and you can all hear his voice how perfect and how great and i love more his voice in immortal song when he sing with baekhyun "i really i didn't know" and then his first ever solo song "Best luck" the OST of the drama it's OK that's love . but when i watch his performance in king of Masked Singer i