When the special performance episode called 'Saturday Saturday Is a Singer' of the popular MBC entertainment program 'Infinite Challenge' ended, the 'Infinite Challenge' fans couldn't sleep. Online, the fans commented their feelings about the special 'Saturday Saturday Is a Singer' episode. They complimented the performance, and wished to see it happen again. The special 'Saturday Saturday Is a Singer' episode showed a stage performance of the top stars of the 1990s. The fans are also asking to release the unedited parts of the episode. 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.