Super Junior's Kyu Hyun Cho is now part of the OST for KBS's The Great Seer as well! His song "Just Once" was released on various sites today. The track is a ballad about a man deeply in love with a woman, and his beautiful voice emotes the feeling of love and the disappointment that comes with it. "Just Once" is expected to be a hit just like the other songs he has done for various dramas. The song is to be used as the ending theme in the drama's 11th episode, which you can watch here. (Source: Do check out the melodious and emotional '"Just Once" and let us know whether its a Hit or a Miss!