*FIXED*
The song, "It's Goin' Down" is X-ecutioners debut single to their album, 'built to scratch.'
Originally Mike Shinoda (Linkin Park, Fort Minor) was the emcee in this track. But for this particular performance @Late Show with David Letterman, they made an exception have Mr. X to the Z as the Replacement. Footage also features metal band, biohazard.
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