I'm seeing the same idiots comment in videos of other performances (Hyuna, f(x), etc.) commenting here and I still can't believe, that in December 2015, some can't distinguish a lip synced performance with a Live performance + a backing track. I never realized how flawless EXO's lives were that those who are used to voice cracks + out of breath singing can't appreciate a vocally gifted group of individuals. Shame