With Run-DMC's Raising Hell, the band tore down the walls of the mainstream for hip hop and anchored it there forever. The crossover hit Walk This Way, recorded with rockers Aerosmith, still sounds like a revolution today. It has it all: hard rock riffs, scratches, gripping rhythms and, of course, the raps and energy of Run, Jam Master Jay and DMC. The New Yorkers' third album was the first of the genre to go platinum - three times. It was the right narratives in the right style and rhythm at the right time