Chicago's buzzing trap star Chief Keef is back and with another street banger. This leak sneaks by via his Twitter account and it’s called “Russian Roulette.” In-demand producer Lex Luger provides a grimy, bass-heavy beat to match Keef's aggressive rhymes about his homies keeping a heater on their side. Just from the energy alone exuded on this track, it’s no wonder Birdman has been on mission to sign the kid. Look out for his collaborations with Young Jeezy ("Understand Me") and Fat Trel coming soon.