MACHINE HEAD frontman Robb Flynn has vowed to "crush" LIMP BIZKIT when the two bands share the stage tomorrow (Sunday, August 2) at the Sonisphere festival at the legendary Knebworth Park, United Kingdom.The San Francisco Bay Area metallers, who announced on July 7 that they were pulling out of the U.K. Sonisphere because the event's promoter "placed, unbeknownst to us, LIMP BIZKIT in our third slot on the festival," are back on the bill as the top-secret "special guests" (as first reported by BLABBERMOUTH.NET on July 29). They will perform right before LIMP BIZKIT and are due to hit the stage at around 2:45 p.m. Without confirming the band's participation in tomorrow's event, Flynn posted a brief message on the official MACHINE HEAD message board "The Frontlines", stating simply, "We're going to fucking CRUSH LIMP BIZKIT!!!!" In a recent Twitter update, LIMP BIZKIT frontman Fred Durst claimed that he was "shocked" when he first heard that MACHINE HEAD was pulling out of the U.K. Sonisphere because of a dispute over LIMP BIZKIT's slot at the festival. However, he was quick to add, "[I] love MACHINE HEAD [and] always will." As previously reported, MACHINE HEAD guitarist Phil Demmel collapsed on stage on July 25 during the band's set at the Sonisphere festival in Pori, Finland. Although Phil had to be helped off stage, he quickly regained consciousness and issued an apology to the fans "for cheating them of their last song." He told Team Sonisphere a short time later, "I feel I short-changed the fans and really want to make it up for them. Thanks for all the concern." MACHINE HEAD is continuing to tour in support of its Grammy-nominated album "The Blackening", which was re-released as a "special edition" last October via Roadrunner Records. Hailed unanimously as the best metal album of 2007 by journalists, metal radio stations and fans alike, "The Blackening" earned a Grammy nomination for the fan-favorite track "Aesthetics of Hate". "The Blackening Special Edition" is two-disc CD/DVD set that features an assortment of extras, including rare bonus tracks such as covers of IRON MAIDEN's "Hallowed Be Thy Name", over an hour of live performance footage from With Full Force, Download and Rock in Rio festivals, three uncensored music videos for "Aesthetics of Hate", "Now I Lay Thee Down" and "Halo", a "making-of" featurette on each video, "The Making of The Blackening" and expanded artwork. There's also what many hardcore fans have been rabidly waiting for: four never-before-seen performances of MACHINE HEAD celebrating the 10th anniversary of their debut album, "Burn My Eyes", captured in Philadelphia in 2004.