Group Teen Top met the original idol group member Moon Hee Joon.

On October 8, Teen Top posted on their Twitter, "Teen Top with Moon Hee Joon, it's not easy" along with two pictures.

Teen Top had met Moon Hee Joon through KBS 2TV "Immortal Song" and "Moon Hee Joon's Innocent 15+." The youngest members Ricky and Changjo are 17 years younger than Moon Hee Joon but they didn't seem like it in the picture, catching much attention.

In another picture, Chunji and Ricky oddly looked similar with Moon Hee Joon, arousing laughter.