Topic: grandmaster flash

Kendrick Lamar (Getty/Kevin Winter)

The 25 best hip-hop protest songs ever

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Bruce Springsteen (AP)

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Grandmaster Flash (<a href="http://www.shutterstock.com/gallery-317845p1.html?cr=00&pl=edit-00">Aisia Williams</a> / <a href="http://www.shutterstock.com/editorial?cr=00&pl=edit-00">Shutterstock.com</a>)

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