Singer Lee Jung Hyun in an interview conducted after the special performance episode called 'Saturday Saturday Is a Singer' of the popular MBC entertainment program 'Infinite Challenge' complimented 'Infinite Challenge' member Yoo Jae Suk. She said in the interview, "It was a wonderful experience to be part of the 'Saturday Saturday Is a Singer' performance."

When asked about her collaboration with the Infinite Challenge members, she complimented Infinite Challenge member Yoo Jae Suk. She said, "First of all, Yoo Jae Suk has a great personality and he is so witty that I like him and respect him a lot. In related news, on the most recent episode of the popular MBC entertainment program 'Infinite Challenge,' the members recruited popular singers from the 1990s and hosted a stage performance, showing popular songs from the 1990s. The MBC entertainment program 'Infinite Challenge' is one of the popular, long lasting entertainment programs in Korea. It features the Infinite Challenge members Ha Ha, Park Myung Soo, Yoo Jae Suk, Jung Joon Ha, and Jung Hyung Don.