Yo after jay z killed his "History" track at the neighborhood ball for Obama, he hit up the Belvedere after party with Young Jeezy and murdered his verse on My President is Black!!! Check it out - he spits it a couple times while the crowd goes bananas! Here's the links:
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Young Jeezy and Jay Z at the Belvedere Inaugural Ball - Chunnel
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Young Jeezy and Jay Z at the Belvedere Inaugural Ball - Chunnel