If you like Korean songs, you will probably like the new Korean drama OST for Boys Before Flowers.... there are several good songs in it. (download) .
My fav being track 2 from SS501, one of the hottest korean boy band now. Incidentally one of the band member is also acting as Hanazawa Rui in Korean's version of F4. I think he is the BEST version of Rui ever!!!!