The fashionable sexy queen Sunmi is inching closer to her comeback with "Siren"! On September 3 KST, Sunmi released a new MV teaser with a longer snippet of the chorus's melody line and lyrics. In addition, the D-1 poster for the album surfaced, in which Sunmi is seen sitting against a collage of wings and flowers. 

Watch the MV teaser above, and check out the image below! Sunmi's new album 'Warning' will officially drop on September 4th at 6 PM KST.