Tom Morello's thunderous opener on Audioslave's 2002 debut. Recorded with Rick Rubin at Cello Studios on Morello's 'Soul Power' Stratocaster (Seymour Duncan Hot Rails bridge) through his lifelong Marshall JCM800 2205 into a Peavey 4x12. The famous 'helicopter' intro isn't a synth -- it's the guitar's kill-switch toggle stuttering a fast, high-feedback Boss delay while a DigiTech Whammy oscillates the pitch. Standard E tuning.