Swimmer Ian Thorpe arrives at the Australian Academy Award Celebration and introduction of the first Heath Ledger scholarship recipient at the Chateau Marmont in West Hollywood, California in this February 19, 2009 file photograph. Thorpe will join celebrities, monarchs, politicians and sporting greats at the royal wedding of Prince William and Kate Middleton to be held at London's Westminster Abbey on Friday. With?three days to go before the marriage, which officials predict will be watched by up to two billion people around the world, details of the wedding were released by St. James's Palace including names of some of the 1,900-strong congregation. [Photo/Agencies]