There's this Korean dance studio that posts videos on youtube (1million dance studio). their choreography is always on point and I've wanted to spread the word about them with you guys for a while but I couldn't find a way to relate it to kpop besides the fact that they're Korean. Then I watched this video, which actually has miss a's Min in it (second group to the far right). I've heard that there were K-pop idols that attended classes at this studio but I wasn't sure until I saw this. You guys should definitely check them out.