Sonisphere is teaming up with Guitar Hero for all six of the new rock festival's European dates. Lucky competition winners have the chance to meet METALLICA and play Guitar Hero in front of thousands on the main stage.As sponsor of this year's Sonisphere festivals throughout Europe and with Guitar Hero's latest signing, METALLICA, headlining the events, what better way to celebrate than to give fans a piece of the action? Sonisphere festival goers can live out their fantasies on Guitar Hero instruments at all six Sonisphere venues storming through Holland, Germany, Spain, Sweden, Finland, before finishing with two days at the historic Knebworth House in the U.K., as well as at some of the band's 37 European tour locations. Plus, METALLICA fans on the European tour dates can win exclusive tickets to the Sonisphere festivals and get their hands on signed Guitar Hero: Metallica merchandise. A lucky few will also win the chance to play the game on the main stage at a Sonisphere in front of tens of thousands of fans, whilst two competition winners from each country will bag the ultimate prize: The chance to meet METALLICA! Become a legend this year with Guitar Hero: Metallica as you play through the stunning musical career of the world's greatest metal band. Shred on guitar, rip on drums and wail on the mic to a set list featuring over 45 explosive hits from Metallica's illustrious career and a wide variety of other legendary artists personally selected by the band, such as Sonisphere allies ALICE IN CHAINS, MACHINE HEAD, MASTODON, THIN LIZZY and THE SWORD. As part of Activision's sponsorship of the Sonisphere festivals, each of METALLICA's tour dates will also include Guitar Hero: Metallica pre-show events, giving fans the opportunity to unleash their inner rock god on specially made Guitar Hero stages before the release of Guitar Hero: Metallica in May 2009. In addition, there will also be a variety of free limited edition Guitar Hero: Metallica items up for grabs, as well as after-parties featuring live DJs, on-stage Guitar Hero: Metallica dueling for prizes and celebrity face-offs, at some venues. "Guitar Hero: Metallica is all about putting the ultimate metal experience into the hands of gamers and evolving the relationship between music and gaming," says Sian Evans, European marketing manager, Activision, "Sponsoring the Sonisphere festivals in 2009 is a great extension of this and being able to give fans a chance to play the game before the band's European tour shows is a fantastic opportunity to share the passion within the game with some of their biggest fans."