@@Luna-ws1kp I recommemd you watching any video about live performances by Angelina, she is really good at explaining this. Long story short: LAR is lipsyncing to a prerecorded live performance, for example they record the vocals without dancing the routine. But its not just classic lip sync, because its not the original track, the vocals are recorded live with the performance mics, just earlier
I BELIEVE IN E'LAST SUPREMACY i have so many thoughts: their live vocals are INSANE it sounds exactly like the studio version???! i'm not even kidding 0:12 seungyeop looks SO GOOD with platinum hair, he looks like an anime character wonhyuk is so well rounded DO YOU HEAR THOSE HIGHT NOTES???)-$:&;&-)()