B1A4's Gongchan is the voice behind "Fallen for U".

The music video features scenes from the drama 'Unintentional Love Story' and Gongchan in the studio recording the track. "Fallen for U" is a romantic track for the exciting meeting between the two main characters, and it's about their growing emotions for each other.

Watch Gongchan's "Fallen for U" MV above, and let us know what you think in the comments below.