An aerosol can spray gun that accepts a top of an aerosol spray gun. The spray gun includes an integral motorized fan. When the trigger on the spray gun is depressed the aerosol spray can dispensing cap is depressed and simultaneously the fan pushes air out through nozzles in the front of the spray gun to control the spray fan pattern. A tab on the cap ensures that the nozzle on the can is oriented forward. Optionally, the air nozzles in the front of the spray gun can adjust the fan pattern between horizontal and vertical.