B.R. Gunna is a hip hop production group based in Detroit, consisting of Black Milk, Young R.J., and Fat Ray. They have produced beats (collectively and individually) for Slum Village, Phat Kat, and many other artists from Detroit. In 2004, they released Dirty District: Vol. 2, which featured appearanced from J Dilla, Elzhi, Guilty Simpson, Phat Kat and many others.