2AM's Jo Kwon continues to tease fans leading up to his comeback.
On December 28, the idol singer posted new content on Instagram hinting at his next collab.
A teaser video featured shiny red boots as Jo Kwon played on the keyboard. The caption read, "Surprise event '?' collaboration??" in addition to date marked for December 29.
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A black and white photo was also revealed of the star in the dance studio, adding to the hype.
Can you guess which star he'll be collaborating with?