Kate Middleton made one final stop by Westminster Abbey today with less than 24 hours to go until her walk down the aisle to marry Prince William and become a princess. The royal wedding is almost upon us, and the excitement in the media and all over the world is palpable. Kate was joined by her soon-to-be brother-in-law, Prince Harry, as well as her mother Carole and members of the wedding party. Rehearsals for the ceremony and proceedings have been going on all week and just last night, William and Kate were spotted together leaving the spot of their future "I dos". New details of the royal wedding service have just been released, including a special message on the official program from the bride and groom to be, saying, "We are both so delighted that you are able to join us in celebrating what we hope will be one of the happiest days of our lives. The affection shown to us by so many people during our engagement has been incredibly moving, and has touched us both deeply. We would like to take this opportunity to thank everyone most sincerely for their kindness." David and Victoria Beckham were spotted heading to London from LAX to take their spot on the coveted guest list. The big event is just around the corner, and don't forget to watch the royal wedding live streaming on PopSugar with our fun editors commentary to talk you through all the action.