Rage Against the Machine are the last true rock'n'roll band left on earth, and boy are they pissed off. Melting down the sound of an amplified four-piece, they forge it anew with apocalyptic passion, wrathfully denouncing American racism and corporate evil. RATM have come to Wembley with a spray-painted banner declaring "The Battle of London". Tom Morello's freshly wound guitar strings wave shinily from his headstock like multiple fuses on an incendiary device, and rapper Zack de la Rocha screams as though screaming has just been invented.

Imagine an enormous wall of television static come to reptilian life: an explosion of noise, then an obscenely lithe and melodic riff. One moment epic bass fuzz is doubled by guitar, the next Morello is playing astonishing staccato feedback solos with his pick-up switch (Know Your Enemy), or emulating a police siren.

To hear RATM's first and third albums played almost in their entirety (with a couple from the dodgy second thrown in) is to marvel at how much fresh musical variation they squeeze from the electric-four-piece formula. Storming riffs are intercut by a jazz-bass intro (Calm Like a Bomb), or chilled-out, deliciously slowed-down swing (Wake Up, with its spectacular cowbells). They sound even better live than on record. And, after an apoplectic final rendition of Killing In The Name, the crowd emerges beaming in sweat-soaked catharsis. It's simple: RATM are the best band in the world.

***** Unmissable **** Recommended *** Enjoyable ** Mediocre * Terrible