The world only has one fully-playable 8-necked guitar, and it's called Rock Ock. Designed by the man who made the iconic AC/DC logo, this two-month old behemoth was kept behind bars in the National Guitar Museum.

Until it escaped. 

Well, not exactly. They let us take out the Rock Ock so we—and now you!—could marvel at this rock n' roll hydra. 

This beast, never played by mortal man, was tackled by a rock group for the first time under the watchful eye of our camera. To see metal band Biohazard attempt to tame the Rock Ock, watch the video above.