The Foo Fighters' have been occasionally covering Rush's Tom Sawyer as part of their Sonic Highways Tour tour over the past several months. Last night they played a show in Edmonton and Dave Grohl asked the crowd if anyone knew the lyrics to the classic song and could actually sing them too. One fan named Brian took up the challenge and was brought up onstage to front the band. True to his word, Brian was able to hit some of Geddy Lee's high notes and did a fairly decent job. You can watch some bootleg video of the performance on YouTube here, here and here. Go Brian! Thanks to Consequence of Sound for the info.