Metal royalty Dave Grohl along with Anthrax pair Scott Ian and Charlie Benante have released a cover of “The Regulator” by Bad Brains. Released under the name G.B.I. (which stands for Grohl, Benante, Ian) have also dropped a video of them recording it in the studio. All proceeds of the cover, will go towards helping Bad Brains singer HR with medical bills and is out as a 7-inch for Record Store Day.

Check out the video below.