With the Royal Wedding just a couple of hours away, and the crowds already getting prime spots around the route of the procession, the palace has released a minute-by-minute official program for the ceremony.

In addition to the schedule, a new portrait of the Kate Middleton and Prince William was also released, which was taken by the famed photographer Mario Testino.

And along with the black and white portrait was a personal message of thanks from the royal couple.

UsMagazine.com reports that the message reads, "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."