B2ST’s Junhyung, BTOB and Ha Yeon Soo recently teamed up to release a special single for Mnet’s upcoming music drama, ‘Monstar’.

On May 17th, Junhyung and BTOB’s Minhyuk, Sungjae, Changsub and Hyunsik who star as members of the idol group ‘Men In Black’ in the drama, as well as Ha Yeon Soo released their own rendition of Yoo Jae Ha’s “Past Days”. The music video for the song was released as well, showing both the acoustic and dance version to give a unique twist.

Check out the MV below.