Project group NASTY NASTY released a teaser.

Star Empire Entertainment shared the teaser for "NASTY NASTY" on their official Twitter and showed a bed scene of Kyungri, Kevin and Sojin, Kevin.

The concept of their MV came from the show, JTBC "Witch Hunt." The hosts of the show created the idea of winning in the morning and losing at night and losing in the morning and winning at night.

From this, Kevin and Kyungri showed a winning woman and losing man concept, and Kevin and Sojin showed a winning man and losing woman concept.

Their new album will release on September 3.