See Jack Black's Black Sabbath Cover Band Perform With Geezer Butler at Power to the People Festival

Jack Black’s comedy‑rock ensemble teamed with original Black Sabbath bassist Geezer Butler to deliver a live rendition of “War Pigs” during Tom Morello’s all‑star Power to the People festival on Oct. 4, a pairing that could boost Black’s musical credibility and add star power to the festival’s ticket draw, while the set was streamed online and sparked immediate social‑media buzz.

Revolver Magazine described the cover as a faithful yet theatrical take, while Rolling Stone highlighted the surprise guest appearance as a key festival moment. Louder reported the set as part of Tom Morello’s all‑star showcase, and Chaoszine listed the performance among the festival’s top highlights. The coverage frames the collaboration as a rare crossover between Hollywood comedy and classic metal heritage.

Jack Black’s foray into classic metal and Butler’s appearance give both artists exposure to each other’s audiences, while the festival leverages the moment for promotional gain. Coverage does not confirm whether additional joint performances are planned or if the duo will appear on future tour dates. Observers can watch forthcoming festival line‑ups and social‑media updates for any announcements of repeat collaborations.