Jang Keun Suk, “Elementary school students don’t know me”…even though he was “Asia’s prince”

Jang Keun Suk appeared on the 200th episode of KBS Joy's ``20th Century Hit Songs'' broadcast on the 26th in Korea, and appeared on ``Hee-chul's No.jin.so (I'll introduce you to my karaoke friends)'' hit song.