Singer Kim Jongseo wowed the audience with his charming high pitch on "Yoo Hee Yeol's Sketchbook."

Kim Jongseo appeared on the January 7th filming of KBS 2TV's "Yoo Hee Yeol's Sketchbook" and sang a number of songs, including his new song "It's Painful." He appealed to the audience with his singing skills.

Not only did he sing "It's Painful," Kim Jongseo also sang "Gethsemane" from the musical Jesus Christ Superstar, wow'ing the audience. Despite his 2 year hiatus, the singer was able to hit the high G note, and charmed the listeners with his high note and stage manners.

He said, "Since I've come back after a long break, I'm going into each performance as if I'm a rookie singer, with a humble attitude."

This episode featuring Kim Jongseo's amazing high note will air on the 10th through KBS 2TV's "Sketchbook."