I think they had a little hard time here, I mean kyung normally slays it all so I think I'm somehow used to all his perfection hahah. Srsly, same for baek he's always really good, but here it's like they didn't hear themselves well and since this song is a difficult task (the tempo and all is hard to do with (was that even english) ) they sometimes sound pretty off to me, like they are self-conscious and all. It seems to go better at the end, but I can say ksoo isnt satisfied by his red ears bweheheh.