Rookie male vocal group Heart B release their 2nd digital single 'Missing You' in collaboration with Zia.

The song is an acoustic track which reminisces about a past lover. Heart B and Zia's provide a wonderful harmony in delivering this emotional ballad song.

Meanwhile, Heart B released their first digital single 'Shine' last December and is ready to move listeners with their vocals as no other information about their group has been released.

Check out the mini movie-like MV starring broadcaster Choi Hee as lead actor below: