On SBS's popular entertainment program "I Like Sundays - Running Man" which aired in the evening of Sunday, December 22, 2013, the Running Man members had a rap battle. On this day's episode, which played out with the theme of "Nightmare of Christmas," Running Man members tried to find evidence of Gaeri's kidnapping and connect with the suspects. The Running Man members, while trying hard to find Gaeri, started going after the suspects of Gaeri's kidnap after finding out pictures of the suspects in a mysterious package that was delivered to Gaeri. Especially Yoo Jae Suk and Ji Suk Jin, who had tried to find the Jo Jung Chi and Jung In couple and A Pink, began to believe that Dynamic Duo was the ones who kidnapped Gaeri. Yoo Jae Suk and Ji Suk Jin, after ambushing Dynamic Duo's recording studio, had an improvised rap battle with them. When Yoo Jae Suk and Ji Suk Jin's poor rap skills were uncovered the Dynamic Duo members could not stop laughing.