Yoo Jae-suk is so funny to make fun of Kwang-soo

Running Man Episode 157, 2013.08.04
RUNNINGMAN 奔跑吧兄弟
Yoo Jae-seok, Ji Suk-jin, Kim Jong-guk, Haha, Gary, Lee Kwang-soo, Song Joong-ki, Jeon So-min, Song Ji-hyo, Yang Se-chan