Tony An

Celebrity guests are split into two teams to compete in various contests. One guest, known only to himself, is designated the "X-Man", and does his best to cause his team to lose the contests. At the end, all guests try to determine the X-Man's identity.

Barefooted Friends is a South Korean reality-variety show; a part of SBS's Good Sunday lineup, along with Running Man. It was first aired on April 21, 2013. The show is an "real outdoor hardship variety"; a spin on typical outdoor variety shows. The members experience "real happiness" with others through challenges. The words, Barefooted is supposed to mean essence, sincerity, and real hardships, where as Friends not only represents the cast, but the people that are met as well. It has garnered attention as being the come-back program for Kang Ho-dong, the main MC of the program, after leaving Good Sunday's X-man in April 2007.