Last week, a preview of Kim Hyun Joong's OST (soundtrack) was revealed during the premiere episode of MBC's newest drama, Playful Kiss. Today, the full audio was finally released, and the title of the song is One More Time. The song is of the slow-beat ballad genre, and it showcases Kim Hyun Joong's great vocals. Check it out below! http://www.youtube.com/watch?v=ay-v88cDtXM Thanks to everyone who sent in tips.