From React 2 Rhythm's 'Intoxication' to David Bowie's 'Jump They Say', Leftfield's remixes are stamped with a unique, compulsive groove. When legal wrangles with Outer Rhythm - the label that released their debut single 'Not Forgotten' - prevented the band from recording under their own name, Paul and Neil turned their talents towards making other people's records sound better. As Paul explains, "We fell into it by accident at a time when remixing was still in its infancy. It was an exciting time. And it gave us a chance to hone our style."

Their first remix was for William Orbit's Guerilla label. Leftfield's take on React 2 Rhythm's 'Intoxication' established Guerilla as the leading progressive house label of the early 1990s. Remixes for ICP's 'Free and Easy' and Ultra Nate's 'Deeper Love' soon followed. As the Melody Maker put it at the time, 'Rather than toying with the odd choice break or dazzling vocal, Leftfield ride the rhythm. They get their kicks from juggling with house pyrotechnics, building tension and shifting gears just at the right moment.' And the their reputation was growing. "From originally doing really underground things, six or seven months later we were turning down U2," explains Paul. "We were pretty much flavour of the month at the time." Receiving remix offers across the board, Leftfield remained selective in their choice of tracks. "We were always careful about what we did, turning down more than we chose to do," says Neil. "We'd do really long sessions in the studio - maybe two or three days. And then we'd do the mix, with dubs and different versions. That's how we started to get into a different kind of style."

In 1992, their mixing abilities were paid the ultimate industry compliment when they were asked to remix David Bowie's 'Jump They Say'. The period represented a turning point, however, in their attitude towards remixing. "In the early days of blending dance and rock, it was exciting," says Paul. "But later we felt that the whole remixing thing had become one big marketing tool. That's why we stopped doing them, because it was turning into the Leftfield remix factory."

Soon, Leftfield began to concentrate purely on the tracks that would come together as 'Leftism'. They wouldn't be transposing their ideas to other artists for years to come. Apart from working with John Lydon in 1997, the band have actually done no remixing since 1995. But now, at the dawn of the millennium, they feel the time is right once more. As Neil says: "We want to push the boundaries of sound back that little bit further".