Singer Lee Jae Hoon of the 1990s group Cool shared his thoughts on ending the special performance episode called 'Saturday Saturday Is a Singer' of the popular MBC entertainment program 'Infinite Challenge' after it ended on Sunday. Singer Lee Jae Hoon said in a recent interview about participating in the performance, "It felt like I went back to the 1990s, riding in a time machine." He added, "I was really nervous and happy." Lee Jae Hoon also said on meeting his colleagues of the old days, "I was really happy to see them all again, because they are still great singers and popular. I wish we could perform with more singers from the 1990s." in related news, Lee Jae Hoon, Lee Sung Soo and Yuri comprised of the 1990s group Cool. At the 'Saturday Saturday Is a Singer' performance, Lee Sung Soo and Lee Jae Hoon sang with Ye Won of the girl group Jewelry because Yuri could not join the program.