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. Today, Ji Suk Jin posted a photo he took with Song Ji Hyo and Haha in the back. The photo was from the day when the Running Man members filmed with themselves without any guests. Last week on October 5, 2015, Running Man members Kim Jong Kook, Lee Kwang Soo, Gary and Ji Suk Jin promoted Byul's new song called 'a shoe' with an Instagram photo of them lying on the ground with a shoe, referring to Byul's new song called 'a shoe.' Along with the picture on Instagram, they asked 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."