A Pink continue to hint on their more mature transformation for their upcoming comeback with individual teaser images seen below!

SEE ALSO: A Pink forgoes their cute image for their 4th mini album teaser image!

The teaser images were unveiled through Naver Music's special promotion page and show the girls giving chic expressions that suit the more serious and sophisticated concept, signaling a change from their cheerful image and signature frilly dresses.

A Pink will make their comeback on the 31st! You can head on over to check more contents on the special promotion page here!