Is there a version of Gravedigger by Dave Matthews that can be voiced over?

I have this assignment that I need to do where I must sing a song. Gravedigger has been assigned to me, and I wished to know if there is a unvoiced version that I can download or buy, or am I going to have to start from scratch? It would make it tons easier for all of us if there is already an unvoiced version out there, but, depends on what you folks know.