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

In the special MV, Moon Byul works hard at a diner before partying late into the night. "Chemistry" is a special gift for fans on the MAMAMOO member's birthday. She wrote along with the MV release, "Thankfully, there are so many people wishing me a happy birthday. I've been having a happy day since dawn. As much as I'm happy today, I hope you have a happy day while looking at the present I prepared for you."

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