A picture of the Infinite Challenge member Yoo Jae Suk and former members of the popular 1990s girl group S. E. S., Bada and Shoo, and Suh Hyun posed together in a black and white photo. They posed as members of S. E. S. while filming the MBC entertainment program 'Infinite Challenge.' They recently performed on stage on its special episode called 'Infinite Challenge' films 'Saturday Saturday Is a Singer.' 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.