On June 6, midnight KST, boy group A.C.E surprised fans with a sudden announcement of a comeback.

With three blank photos posted up on their official Instagram account, it was captioned with a hashtag #ACE_COMEBACK, hinting on an upcoming comeback schedule, followed by hashtags of the members' names.

While little has been revealed about this upcoming comeback, fans are looking forward to further details and are leaving many comments expressing their excitement.

Meanwhile, the group previously released a collaboration single with Los Angeles-based DJ/producer duo Grey, 'Down,' earlier this April. Check it out below!