Singer-songwriter duo Melomance will be back with a special OST for the drama 'A Business Proposal'.

Melomance will officially release the original soundtrack "It Must Be Love" for the SBS drama on February 18 at 6 PM KST. 

"It Must Be Love" is a special OST that will give a taste of the romantic excitement that will be seen in the drama 'A Business Proposal.' In particular, the soft and comforting voice of the lead vocal Kim Min Seok paired with the flowing piano played by Jung Dong Hwan gives birth to the romantic melody.

Meanwhile, 'A Business Proposal' tells a romantic story between a boss and an employee that unfolds in an office. The main female lead, Ha Ri shows up on a blind date under the guise of her friend and ends up meeting her boss. This office romance will air on the 28th beginning at 10 PM on SBS and will be streamed globally via Netflix.