Through MBC's "Quiz to Change the World", which aired on June 4th, one of the show's MCs asked Norazo's Lee Hyuk, "Do you know how to sing 18 notes?" Lee Hyuk answered, "I think you are talking about my voice warm ups. It's a nickname that I got because I am in charge of the high notes." Shortly after, Lee Hyuk showed his 18 note levels. With no end to the high notes, Lee Hyuk truly proved his roots as a rocker. Upon hearing him, the guests of the show gave him a warm applause. Netizens who watched this broadcast commented, "It's amazing that he reached that 18 notes" and "I got goosebumps listening to it". Check it out below! http://www.youtube.com/watch?v=pqAWB8kHHMU Source: TV Report