Atmosphere are a two-man group made up of MCs Slug and Spawn. There are a few pieces of filler on Overcast!, but it does have its share of good songs too, such as "1597," "Sound Is Vibration," "Scapegoat" and "Cuando Limpia El Humo." "Sound Is Vibration" has a heavenly feel due to the harp used in the beat, and Slug and Spawn bring a lot of energy to the song. "Scapegoat" is a creative song done by Slug, in which he talks about all the excuses people use for their mistakes without considering their own faults. The only guest on the album is Beyond, who appears on "Current Status" and "Adjust." All songs are produced by Ant.