Today, Roanoke's main library hosts a hip-hop retrospective, titled "And It Won't Stop... The Roots of Hip-Hop," that celebrates break dancing and graffiti, MCing (on a microphone) and DJing (on a turntable).

Earlier this week, Black Out Entertainment gave a preview of two steps, crump and break dancing. The local underground artists' group will be present at today's event.

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