On the most recent episode of the MBC entertainment program 'Infinite Challenge,' which aired on December 20, 2014, the Infinite Challenge members debuted an episode called 'Saturday Saturday Is a Signer' with a lineup of popular singers from the 1990s.

On this day's episode, the Infinite Challenge members recruited popular singers from the 1990s and hosted a stage show featuring them. Shoo of S. E. S., a popular girl group of the 1990s, participated along with singer Kim Jung Nam. The stars of the 1990s showed up on TV in a long time, said hi to their fans. 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 popular 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.