If Brian May could capture one moment from his life so that others could step inside that moment and experience it, it would be the time he strode onto the roof of Buckingham Palace alone except for his guitar and played to 200 million people. "I'd love people to know what that felt like," said the Queen guitarist. "It was a whole life-changing experience for me." No-one but May will ever know what it was like to perform on the roof of 'er majesty's gaff for the Queen's Golden Jubilee celebrations in 2002. But the legendary guitarist is giving music lovers a chance to see what it's like to be part of a Queen show, thanks to virtual reality. The band filmed its recent Barcelona concert with 360-degree cameras that zoomed around the gig on a four-point wire system suspended over the crowd -- the type of camera you've probably seen flying over arenas and sports fixtures. You'll be able to soak up the atmosphere, both on stage and from within the crowd, by watching the resulting VR experience through a wallet-friendly 3D and VR viewer developed by May himself, called the Owl.