Running Man superfan Wooseok heard Kwangsoo's "Jaesugi Hyung!!!" firsthand.

Wooseok, a huge Running Man fan, heard Kwangsoo's "Jaesugi Hyung!!!" directly from him lol

They really burst out laughing for real lol

"I can't believe I'm actually hearing this in real life...!!!!!!!" he said, laughing a lot.