Original Soundwaves Artwork created from the audio of Tenacious D’s “The Metal.”Eachartwork was hand-signedby Jack Black and Kyle Gasson June 16, 2023 backstage at The O2 in London, England. The artwork also features the lyric “You can’t kill THE METAL” written by Jack Black and printed onto the artwork.The duo signed this artwork to support the incredible work ofChildren in Conflict, who work to feed and protect refugee children fleeing conflict zones and wars.