Woohyun was the fifth competitor up on the show, and he covered Fly to the Sky's "Unknown Love". Though the song was originally a duet, the INFINITE member had no problem taking it on solo. He said before he performed, "I'll work hard and put all my strength into singing sincerely before I leave."

He made everyone choke up with his emotional vocals, and it was Moon Myung Jin (Highlight For Spoiler) who took the final win.