Actor Kim Joo Hyuk, singer Kim Jong Min, and comedian Kim Joon Ho are the new Gee brothers of "1 Night 2 Days."

On the KBS2 entertainment program "Happy Sunday - 1 Night 2 Days," which aired on January 12, 2014, the "1 Night 2 Days" went on a tour of the northern Kyung Ki Do, and went on a mission to climb an icy wall. The youngest Jung Joon Young and "Da San" Cha Tae Hyun won the round, and got to eat eel for lunch as a prize. Defconn succeeded in the mission as well. Kim Joon Ho failed, and Kim Joo Hyun succeeded by miracle. While the members were on the mission, Kim Jong Min, who had acrophobia, got scared in the middle of climbing. He stopped climbing and started yelling out, "My legs are cramping!" Kim Jong Min gave up the mission midway.

After lunch, the "1 Night 2 Days" production team suggested the "1 Night 2 Days" members for a round of wrestling. The members wrestled one another. By the end of the wrestling, members Kim Joo Hyuk, Kim Jong Min, and Kim Joon Ho failed their games and suffered from bad case of leg cramping. Other members called the three members as the Gee family, a playful pun of the word cramp in Korean and Gee, the popular song of Girls' Generation.