The popular SBS entertainment program 'Running Man' members promoted a new song by ballad singer Byul, who is a wife of the Running Man member Haha.

On October 5, 2015, the Running Man members Kim Jong Kook, Lee Kwang Soo, Gary and Ji Suk Jin promoted Byul's new song called 'a shoe.' The Running Man members lay down on the ground with a shoe to promote Byul's new song called 'a shoe,' and also posted the pictures on their Instagram accounts, asking for the fans to listen to Byul's new song. 'A shoe' is a song that Byul composed and wrote lyrics by her own. The song was released at noon today. SBS entertainment program 'Running Man' is one of the most popular Korean TV shows with international fame. It airs every Sunday night. Running Man members star on each weekend's episode, along with the episode's guests. The SBS entertainment program 'Running Man' is one of the most popular Korean TV shows with international fame. The SBS entertainment program "Running Man" has been one of the oldest and widely popular weekend shows in Korea, along with "Infinite Challenge" and "1 Night 2 Days."