Group Sunny Hill has welcomed back Kim Jang Hyun after his service in the military and is planning to make a comeback as a co-ed group.

On January 17, the group released a still cut of their music video for their upcoming song, “Don’t Say a Word.” In the teaser photo all the members are wearing similar thick turtle neck sweaters that look warm enough for the cold winter. Their somber expressions give a hint to the style of the song. The song produced by KZ, who has written songs for IU, Brown Eyed Girls, and Lee Hyori.

While Jang Hyun was in the military, Sunny Hill had been promoting as a female group. Their last song, “Darling of All Hearts” was a catchy polk-pop song during the summer.