Those who are keeping up with the show may recognize the tune from the episode that aired last week in the romantic scene of Dok Go Ma Te (Jang Geun Suk) and Bo Tong (IU) at the ice rink.

Regarding this surprise release, the actor's agency remarked, "His condition isn't good due to his killer schedule, but even his despite his voice not coming out properly, he felt that he needed to gift fans who have been showing their love."

Give it a listen above!