Boy band Block B revealed their shocking transformation in their comeback teaser.

On July 14, Block B unveiled the teaser image of fourth mini album H.E.R through their online SNS.

In the revealed image, Block B shows their mischievous side in their pink-themed teaser image. The image shows a transformation of the members while the revealed tracklist raised expectations.

Block B's fourth mini album H.E.R was produced by leader Zico. Title song "H.E.R" sings about the girl, her, while also used as a expression of surprise.

Meanwhile, Block B will begin pre-release sales of their fourth mini album through offline and online stores starting on July 15. Mini album H.E.R will be released on July 24.