Running Man (Korean: 런닝맨) is a South Korean variety show; a part of SBS's Good Sunday lineup, along with Heroes (영웅호걸). It was first aired on July 11, 2010. This show is classified as an "urban action variety"; a never-before-seen new genre of variety shows and will greatly involve the participation of viewers. The MCs and guests are locked in a landmark during closed hours and are required to leave before opening hours. The first team to leave will win, while the losing team will be punished in the landmark. It has garnered attention as being the come-back program for Yu Jae-suk, the main MC of the program, after leaving Good Sunday's Family Outing in February 2010.
The original members of Running Man are Yu Jae-suk, Ji Suk-jin, Kim Jong-kook, Ha-ha, Lee Kwang-su, Song Joong-ki, and Gary. Song Ji-hyo was originally a guest for the second (episode 2-3) and third landmark (episode 4-5). She officially joined the program in the fourth landmark (episode 6) but was unable to attend until the fifth landmark (episode 7). Lizzy was also originally a guest for the eleventh (episode 13) and twelveth landmark (episode 14). She officially joined the program in the sixteenth landmark (episode 18). Lizzy the leaves the show. (Episode 24)