High4 will collaborate with a female artist for their upcoming comeback.

On July 21st, some photos from their MV filming set were released and a silhouette which featured a mysterious girl. Previously the group achieved a hugh success by having IU as their muse for the group's debut single "Not Spring, Love or Cherry Blossom" so they are receiving much expectation from many people for this comeback.

"Do It, Don't Do It" is co-written by composer Lee Jong Hoon who wrote "Not Spring, Love or Cherry Blossom" and PJ who had 1 self-written song ranked 1st on Japanese Oricon chart. Members Alex and Lim Young Jun participated in the rap making for the song.

"Do It, Don't Do It" will be released on July 29th.