Block B's Zico and�Girl's Day's Sojin have joined forces for an awesome OST for the drama 'Mask' that you'll find yourself playing over and over!

The first OST for 'Mask', "One Day" by Lyn has been receiving a ton of attention and we know Zico and Sojin's new song, "It Hurts",�will receive just as much of a hot response, if not more!

And it's also been revealed that the two wrote their own lyrics to the song!�

SEE ALSO: Zico leans back in solo 'SPOT!' concept photos

Zico and his powerful rap and Sojin's matured vocals match perfectly, don't you think? Be sure to watch the new drama 'Mask' too!