Earlier, we reported that the�'Running Man' crew were in Hong Kong, filming their next episode with CNBLUE's Jung Yonghwa and actress Lee Min Jung. Well it looks like the show acquired some additional star power, as a preview for next week's episode featured an appearance by international superstar, Jackie Chan! In the preview, Jackie Chan can be seen in pre-recorded videos, acting as the person to give them clues and directions for their missions. Jackie Chan even spoke in Korean at one point, telling�Yoo Jae Suk, "Grasshopper, quickly run!" and also ending with "Running Man, daebak!" PD Jo Hyo Jin revealed that although he would have loved for Jackie Chan to participate directly in the show, it would've been difficult in reality for foreigners to really do it because of the format. Still, Jackie Chan did his best to bring some fun to the show, which we'll be able to see on December 11th. Check out the preview below! Source: Newsen via Nate