Over the past several years, Blizzcon attendees have been treated to a closing concert at the end of the geeky festivities. In 2009, Ozzy Osbourne brought the darkness to the Anaheim Convention Center and last year Jack Black's Tenacious D headlined the event with Dave Grohl playing drums for them. Dave Grohl is back for Blizzcon 2011 as the Foo Fighters will take center stage. As usual, Blizzard's in-house band, the Level 80 Elite Tauren Chieftains, will open for them. When asked about performing for the throngs of eager warcrafters Dave Grohl replied snarkily, “We’re pretty sure that in the future, music historians will look back at BlizzCon 2011 as the unquestionable pinnacle of Foo Fighters’ long and illustrious career. We look forward to living up to that prediction by bringing the Horde and Alliance together to rock the hell out of Anaheim next month.” While Blizzcon 2011 and the concert are sold out, fans can still view the festivities by ordering the Blizzcon Virtual Ticket, which live streams the event over the internet and on DIRECTV.