Believe it or not...
LMH also will sing the OST.
The Heirs> Lee Min Ho to sing 'Love Hurt' OST
On December 3, Starhaus Entertainment announced that Lee Min Ho will be singing the new theme song for Kim Tan. The company explained that Painful Love is an emotional ballad which expresses the feelings of a man who only has his eyes locked on one girl.
Painful Love will be released on December 4.
credit: NATE
m.news.nate.com/view/20131203n05369