Im talking about singing their songs as is supposed to be. No cracks, reaching always the note, etc etc. And have to be all the members. So, based mainly in encores, which are the best proof (and maybe the only one) we have about how good idols are at singing raw.
So, my list is:
Mmm, i was going to put Red Velvet, but i notice Irene sometimes is kinda weak in encores, and Yeri is worst.
What other groups you think can do it? 
