Earlier today the Foo Fighters streamed their show at the Roundhouse in London as part of the month-long iTunes Festival. The band was joined by Brian May and Roger Taylor onstage to cover the Queen classic 'Tie Your Mother Down', watch it here.

It's pretty tough to keep secrets under wraps in a society where information moves as fast as it does in ours. Earlier we reported that it was highly likely that the Foo Fighters would be joined by the May and Taylor at their gig in London tonight. They were in fact joined by those two as well as Lemmy Kilmister of Motorhead. Here is the footage of Foo Fighters playing musical chairs to cover Queen's 'Tie Your Mother Down'.