A.C.E have revealed their group teaser image and comeback schedule for their upcoming album 'Under Cover'.

As you can see above, A.C.E are returning with an edgy, red and black concept, and the tag line for their 'Under Cover' album reads, "Because I want you to be mine, be mine." Fans can expect the group's next teaser image on May 3, and the album drops on May 17 KST.

Stay tuned for updates on A.C.E's comeback!