Kim Chung Ha and Super Junior's Yesung have officially dropped the music video for their collaboration single "Whatcha Doin'?"!

The single, which was released on December 17, was written and arranged by Yesung, and playfully expresses the sulking feeling felt when waiting for a crush to reach out with a phone call. In the video, Kim Chung Ha and Yesung play two people in a 'some' relationship, clearly coupled up but still in the emotional limbo of not having settled down just yet. The song is an uptempo pop track with a grooving bassline and synth melody, perfectly complimenting the singers' smooth R&B vocals. 

Check out the music video for "Whatcha Doin'?" above!