They ask me what I'm doin', I say I'm stealin' rock back
1st: Roc Nation and Rocafella Records were both labels of Jay-Z. Roc is a known tag with Jay-Z and Kanye, who he mentioned the line before.
2nd: Rock music originally emerged from “black” music like gospel or rhythm and blues mixed with country and western. White people adopted it as part of their own, or “stole” it.
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