Singer So Chan Hwi, who recently appeared on the popular MBC entertainment program 'Infinite Challenge,' sang Psy's Champion on Concert 7080. So Chan Hwi on the episode of the MBC entertainment program 'Infinite Challenge,' which aired on November 8, 2014, was invited to sing at the 'Saturday Saturday Singers' edition of 'Infinite Challenge.' So Chan Hwi sang her hit song from the 1990s, 'Tears,' which requires a very high range of voice. She also sang singer Psy's hit song 'Champion' at the Concert 7080. In related news, So Chan Hwi released a new rockabilly album called 'Neo Rockabilly Season' last March. She also works as a voice coach. The popular MBC entertainment program "Infinite Challenge," which recently aired its 400^th episode, features the Infinite Challenge members Ha Ha, Park Myung Soo, Yoo Jae Suk, Jung Joon Ha, and Jung Hyung Don, who play survival games every week on different topics.