Block B Zico and Girl's Day Sojin collaborate for drama 'Mask' OST.
The two talented idols sing 'Sick', an emotional ballad track. Zico's smooth rap and Sojin sensitive vocals blend flawlessly to deliver the painful feelings of the loving someone.
Listen and watch below:
Download Zico & Sojin sing 'Sick' in MV for 'Mask' OST video
