It took a special occasion and a passionate cause to reunite one of the biggest rock bands of all time. Members of Pink Floyd put aside past differences to join the star-studded line-up that made Live 8 such a success. Appearing in London, the group added its talent to what has been billed the greatest music show ever. Pink Floyd joined stars like Robbie Williams, Madonna and U2 at one of ten concerts across four continents aimed at putting pressure on world leaders to do more to alleviate global poverty. Twenty years after Live Aid, Bob Geldof had once again inspired music legends to come together in solidarity. Some, like Sting and Sir Elton John, had taken part in the original event. The extravaganza had kicked off in Tokyo hours earlier. It took in venues including Johannesburg, Moscow, Paris, Berlin and Philadelphia. Those taking part and the crowds listening hope that such an enormous effort will be enough to influence the upcoming G8 summit.