"The horrible shock of 9/11 shocked the world. And then (bandmate) John (Entwistle) dying the next year did make us realise, 'We're mortal'. If we believed in anything, it was the power of music bringing people together. If we're touring for anything, that's a good enough reason for me." The Who star Roger Daltrey doesn't need to dig too deep to find inspiration for stepping out onstage.