Seventeen filled the stage on the July 1 installment of 'Immortal Song'.

SEE ALSO: Seventeen brings out the new highlight medley for their upcoming best album '17 IS RIGHT HERE'

Seventeen covered the duo Clon's 1997 hit "City Escape", and they expressed before getting on stage, "We were energized practicing this performance, so we'll return that same energy." Clon's Goo Joon Yup commented he was impressed by their youthful energy, saying, "They're 30 years younger than us. Youth is definitely good."

SPOILERS BELOW:

Though Seventeen won their round, it was KCM who took the final win.