A.C.E have revealed their dark 'moon' concept images for 'SIREN:DAWN'.

For their latest concept teasers, A.C.E take on an edgier look in all-black and draping jewelry. A.C.E are dropping their fifth mini album 'SIREN:DAWN' and title song "Higher" on June 23 KST.

So far, A.C.E have teased ethereal, mysterious concepts like their siren sun, dark, murky, and veiled teasers.

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