Guest Jo In Sung of the popular SBS entertainment program 'Running Man' slapped his best friend and the popular SBS entertainment program 'Running Man' member Lee Kwang Soo, making the other member sand guests laugh.

On the most recent episode of the popular SBS entertainment program 'Running Man,' which aired on June 14, 2015, the Running Man members Yoo Jae Suk, Gary, Haha, Ji Suk Jin, Kim Jong Kook, Lee Kwang Soo and Song Ji Hyo, played games with the guests Jo In Sung, Byul, Kim So Hyun, Im Joo Hwan, Song Joong Ki and Son Joon Ho. During their conversation, Running Man member Yoo Jae Suk whispered to Lee Kwang Soo, who has been explaining to people about the appearance of the guests Jo In Sung, Im Joo Hwan, Song Joong Ki. Right after that, Jo In Sung came up to him and slapped his cheek, making everyone at the scene laugh. In related news, the SBS entertainment program 'Running Man' is one of the most popular Korean TV shows with international fame. It airs every Sunday night. Running Man members star on each weekend's episode, along with the episode's guests.