Hong Eun Ki is only a few hours away from releasing his latest solo single!

On January 4 KST, the former Rainz member unveiled the music video teaser for his 4th solo single "ON & ON." In the clip, a heavy EDM-inspired beat plays as the idol poses handsomely in a number of chic and cool-toned settings. 

Meanwhile, "ON & ON" is set for release on January 5 at midnight.

Check out the music video teaser above!