Great video that I haven't seen before. Now I read the following list of musicians:
Organised by Jon Dee, the remake featured David Gilmour, Brian May, Tony Iommi, Ritchie Blackmore, Alex Lifeson and Chris Squire on guitars. On vocals it had Ian Gillan, Bruce Dickinson, Paul Rogers and Bryan Adams. Keith Emerson and Geoff Downes played the keyboards and Roger Taylor played the drums.