Star Empire Entertainment, ZE:A's agency, made a surprise announcement that there will be a new song showcasing on December 11.  

On December 5, Star Empire Entertainment posted "2014/12/11 PM12:00 WHO'S NEXT? Who will Star Empire's surprise comeback be?" on their official Twitter page.  Along with the text, a photo of two men wearing suits near a piano was also revealed.

Following the post, there are rumors that this may be the birth of a new two-unit group, and anticipations are high.

Last September, Star Empire Entertainment actively created various collaborations within the agency, including Kevin from ZE:A, Kyungri from Nine Muses, and Nasty Nasty.