Prince Harry's longtime girlfriend, Chelsy Davy, was out shopping with friends in London today as the city, and the world, preps for Friday's royal wedding. Chelsy is expected to attend the ceremony by Harry's side. Bride-to-be Kate Middleton, meanwhile, has been getting ready for the nuptials with her own recent retail excursions as the anticipation over what she'll wear on the big day grows. Predictions about her dress have ranged from a custom Alexander McQueen gown to a dress of her own design, but so far, details have remained under wraps. 1,900 guests are invited to watch Kate and Prince William exchange their vows in Westminster Abbey, and an estimated two billion people may watch from around the globe! We're covering Prince William and Kate's wedding live, so stay up and watch with us! The official royal wedding schedule was just released, and we'll be following the whole program, from Prince William's arrival with his father, Prince Charles, to his fairy-tale kiss with Kate on the balcony.