Nichkhun & Junsu (2PM), Leeteuk & Eunhyuk & Shindong (Super Junior), Yoo Sang Chul, Park Joon Gyu, Han Jung Soo, Kim Ji Young, Jo Yeo Jung, Yoon Ji Min, Yoo Min, Jung Xia, Kim Sung Kyung, Kim Young Chul, Kim Hyo Jin, Jung Joo Ri, Hong Suk Cheon, Hong Kyung Min, etc.
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Ready to Watch Strong Heart, Season 1, Episode 31?