Earlier today, EXO-CBX consisting of members Chen, Baekhyun, and Xiumin, announced that they would be releasing their debut track "Hey! Mama" on October 31. Their debut stage will be on 'M! Countdown' on November 1.
The teaser image shows EXO-CBX's blocky logo, with the letter "B" cut out to reveal Chen, who seems to be surrounded by his other sub-unit members.
Stay tuned for more of EXO-CBX's teasers!