He will be remembered as the iconic figure who defined pop music with a unique sound – a mesmerising mixture of soul, disco and rock. Though he hadn't toured for almost eight years, the clamour to see him at the London gigs showed he was still as popular as ever. And it's not just fans who will miss him. "I can't stop crying over the sad news. I have always admired Michael Jackson," said his pal Madonna after hearing of his death. "The world has lost one of the greats, but his music will live on forever"