That voice! There were many non-hard rock and metal fans introduced to the strength and power of David Draiman's voice earlier this year when Disturbed's cover of Simon & Garfunkel's "Sound of Silence" reached well beyond rock and metal radio. Now it's time for fans old and new to get a listen to Draiman singing another classic during a soundcheck in Las Vegas as he performs "Unchained Melody," a track made most popular by the Righteous Brothers.

The Disturbed vocalist belts the song to an empty theater with his voice bounding around every nook and cranny of the acoustically sound venue. But mid-performance, there is a bit of levity as guitarist Dan Donegan slips in behind Draiman, wraps his arms around the singer and simulates making pottery, giving a nod to the '90s film Ghost.

As film buffs remember, the Righteous Brothers classic played in the background as Patrick Swayze joins Demi Moore in a sexually charged scene with their hands intertwined while molding clay. Donegan elicits a smile and laugh out of Draiman, who briefly stops before continuing with his performance of "Unchained Melody."

Disturbed are in the midst of a massive tour in support of their Immortalized album. See all of their scheduled tour stops here.

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