Disturbed Lead Singer Sings ‘Unchained Melody’ During Soundcheck (Video)

David Draiman from Disturbed sang “Unchained Melody” during a soundcheck in Vegas the other day, and he actually sounded really good!  In the middle of his performance, guitarist Dan Donegan comes up and puts his arms around Draiman, as if he’s working a pottery wheel with him, like Patrick Swayze and Demi Moore in the 1990 movie “Ghost“.