Back on May 27, KBS revealed BoA's new OST, "Between Heaven and Hell", which is included in first OST album for the drama 'Shark'. Now, the music video has been revealed. 

The song is a soft ballad produced by Kim Hyung Seok and will be the drama's main theme song. The MV for the song features various clips from the drama.

'Shark' is about a man who leaves the love of his life to exact revenge on those who have wronged him, starring Son Ye Jin and Kim Nam Gil. The drama premieres today on KBS.