MAMAMOO's Moon Byul has dropped her music video teaser for "Chemistry"!

In the MV teaser, Moon Byul has a long day at the diner before breaking out into fun at night. "Chemistry" is a special gift for fans on the MAMAMOO member's birthday, and it's set to drop on December 22 KST.

Moon Byul wrote along with the MV teaser, "I prepared this song because I wanted to repay the fans who expressed a lot of love for me. No one can beat our chemistry. Of course, I don't want to get used to it. I think my fans are the ones who make me want to express the obvious things. Thank you for the congratulations."

Watch Moon Byul's "Chemistry" MV teaser above, and let us know what you think in the comments below.