Composer Jeong Joon-Il appeared on Running Man' for the theme song of Running Gu.
On SBS Running Man' broadcast on the 4th, Jin Joon-Il appeared in surprise.
Jeong Joon-Il is a singer-songwriter who created 'Hold me', 'Confession' and 'To You' and was a composer of Running Man' theme song.
Jeong Joon-Il is a shy personality. He introduced himself in a small voice, saying, "It is Jeong Joon-Il who makes and sings songs."
Jeong Joon-Il's appearance on the show was the first since Yoo Hee-yeol's Sketchbook in 2018, when he was thirsty and drinking water.
Jeong Joon-Il accepted the proposal for the theme song "Running Man" during his life in New York because he is a fan of this broadcast. Running Man laughed at asking, "Is our broadcast and gag code right?"
