As most of you have heard by now, f(x)'s Sulli is the next celebrity guest to join SBS' 'Running Man'.

PD Kim Joo Hyung tweeted a photo of Sulli with the entire cast and the message, "The contestants forcibly smiling before the 'Dream Cup'. It was seriously funny because they were so nervous. To add, the center of the photo is peaceful Gary." Viewers of the show are aware that Leessang's Gary is known for the odd faces he pulls in photos.

This episode will focus on Sulli, Yoo Jae Suk, Ji Suk Jin, Lee Kwang Soo, Kim Jong Kook, Song Ji Hyo, HaHa, and Gary as well as soccer players Patrice Evra, Park Ji Sung, and Koo Ja Cheol at the '2013 Asia Dream Cup' in China. 

Fans commented, "Yoo Jae Suk's body is pretty good," "I love Gary's expression," "The 'Running Man' family," "Song Ji Hyo's legs are unreal," and "Sulli is so beautiful."

Are you looking forward to this episode?