The Foo Fighters make it a personal tradition to construct special experiences for each of their fans--whether its continuing to tour after a broken leg or inviting fans onstage to jam with Dave Grohl and company, concertgoers can expect to be a part of something unique. For their latest gig in Edmonton, Alberta, the Foo appropriately decided to tackle a bombastic Cover of Canada's very own, Rush. Instead of Grohl belting out the lyrics from atop his oxycontin-inspired throne or drummer Taylor Hawkins manning the mic, the group invited a fan named Brian to the Stage to handle Geddy Lee's vocals on "Tom Sawyer."