Lateralus and the corresponding tours would take Tool a step further toward art rock and progressive rock territory, in contrast to the bands earlier material, which has often been labelled as alternative metal.  Extensive touring throughout 2001 and 2002 supported Lateralus and included a personal highlight for the band; a 10-show joint mini- tour with King Crimson in August ‘01. Comparisons between the two were made, MTV describing the bands as "the once and future kings of progressive rock". Maynard James Keenan stated of the mini-tour "For me, being on stage with King Crimson is like Lenny Kravitz playing with Led Zeppelin, or Britney Spears onstage with Debbie Gibson". On 21st July 2001, Tool performed at the Pepsi Center in Denver CO, where they played one of the tour’s finest dates, which was recorded for live FM radio broadcast. Previously unreleased on vinyl, this superb show is now available in its completion on this new two-instalment set.