On May 21st, veteran singer Yoon Do Hyun dominated the stage of MBC's "I Am a Singer" with a hard rock remix of SNSD's "Run Devil Run." This week's mission required the artists to perform a song recommended by netizens. Yoon Do Hyun was actually in the worst possible condition to be performing in, but through the support of fellow contestant Im Jae Bum, the singer was able to overcome his unfavorable throat condition. In the viewers' opinions, Yoon Do Hyun performed his most explosive stage to date, which put all of the rumors surrounding him and the show to rest. Viewers and audience members alike were especially ecstatic with his clever use of a megaphone near the climax of the song. Check it out below! Source + Photos: BNT News via Nate