Wonder Girls members actively helped Sunmi's comeback.

Sunmi, who made a comeback in 3 years and 7 months, is currently making the last preparations of her comeback. It has been revealed that Wonder Girls members also helped.

Agency JYP Entertainment said, "Wonder Girls helped Sunmi choose her songs, keeping up their support."

According to a staff member, the members of Wonder Girls helped Sunmi choose her outfits for her music video.

Sunmi is releasing her music video on August 20 and her digital single on August 26.

Photo Credit: JYP Entertainment