By creating this video, YouTube user Will Schleichert proves that he has way too much time on his hands. On a related note, YouTube user Will Schleichert is a genius. Behold, Keith Olbermann rapping along to 2Pac's scathing diss track, "Hit 'Em Up," in the aftermath of his recent beef with WFAN and Mike Francesa. So great.

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[via Deadspin]