Few producers have ever affected hip-hop as quickly and undeniably as Lexus Lewis, who was just 19 when “B.M.F.” by Rick Ross and “Hard In Da Paint” by Waka Flocka Flame made his hammering synths and chaotic splatter of hi-hats the new sound of the American South. He soon diversified with laidback beats like Wale's slow jam “That Way', but Lex Luger's signature sound remains ominous and propulsive.