24K's Kisoo, who is currently going by the stage name 'Soo', just dropped a second music video teaser for his latest solo single, "Goodbye"!

In the teaser, which was released on December 28, the idol can be seen in warm turtleneck fashion as he walks beside the water, his soothing R&B vocal tone offering a preview of the emotional break-up ballad that is yet to come. 

Meanwhile, "Goodbye" is set for release on December 31.

Check out the music video teaser above!