ASTRO's MJ is the voice behind "On a Spring Day" for the 'Yoobyeolna! Chef Moon' OST.

The music video begins with Yoo Yoo Jin (played by Go Won Hee), a fashion designer who loses her memory, complaining after leaving the house of star chef Moon Seung Mo (Eric), and it continues into their growing romance. "On a Spring Day" is about always being there for someone special in your life.

Watch MJ's "On a Spring Day" MV above, and let us know what you think in the comments below.