Final preparations are on ahead of the wedding of Prince William and Kate Middleton in London on Friday. It comes after the couple attended a rehearsal at Westminster Abbey with the bride's parents and Prince Harry. William is due to spend this evening with the Prince of Wales, Duchess of Cornwall and Harry while Miss Middleton and her family will gather at a hotel. The Queen is hosting an event for British and foreign royals on Thursday night. The reception and dinner is taking place at the Mandarin Oriental hotel, near Hyde Park, in central London. Some 50 foreign heads of state are among the 1,900 invited guests attending the wedding. The events will be watched by millions of people worldwide on television. Thousands of journalists have descended on London and makeshift studios have sprung up outside Buckingham Palace and along the wedding route.