Yu Jae Seok stole the show at HAHA’s concert?! 😂 #fyp #runningman #yujaeseok #yoojaeseok #kimjongkook #haha #yangsechan #songjihyo #jiseokjin #jisukjin #jiyeeun #heokyeonghwan #kvariety #kvarietyshow #koreanvarietyshow #koreanvariety #kocowa