Killer Mike remembers when he and his friends first heard N.W.A.'s Straight Outta Compton. "We were waiting for this record we'd heard about that had cursing on it - cussing, as we say in the South." On Killer Mike's latest album, R.A.P. Music, the Adamsville rapper terrorizes like his childhood Jheri curl-wearing idols and inspires like his late grandmother, who was a civil rights activist. He plummets through a lyrical reunion with T.I. and Bun B while aided by his own battle cry: "POW, motherfucker!" He confronts his own mortality: "Will my woman be Coretta, take my name and cherish it?" He paces through the aftermath of Ronald Reagan's presidency, the Iran-Contra affair, and the resulting '80s crack epidemic that gave N.W.A. so much attitude. He cusses, sputters, and preaches. R.A.P. Music is Killer Mike's pièce de résistance - a collection of stories pieced together from cassettes, headlines, and a lifetime spent in Atlanta, as told by a drawl that airs out like gun smoke. www.twitter.com/KillerMikeGTO.