Weekly Idol is a South Korean variety show that began in 2011 and currently airs Wednesdays at 7:20 PM KST on MBC M, and 12:00 AM KST on MBC Every1. It is one of the longest-running variety shows to air on satellite TV in Japan.

Jung Il-hoon, simply known as Ilhoon, is a South Korean rapper, songwriter, record producer, host, actor and entertainer. He was the rapper of the South Korean boy band BtoB. He is well known for his collaborations with artists such as Hyuna and G.NA, as well for being an assistant MC on the variety show Weekly Idol. Ilhoon made his acting debut starring in the drama Webtoon Hero: Tundra Show in 2015. He was also known for popularising the gestures for "Gwiyomi Player", later confirmed he was taught it by Yujin when she was a trainee.