Just before  Magic Kingdom Park officially opens, make your way down Main Street, U.S.A. to the front of Cinderella Castle The sound of a trumpet fanfare will signal the arrival of the Royal Herald and then you’re greeted by Mickey Mouse himself—along with a special Disney surprise 

Let the Magic Begin is available to any Guest with a ticket to Magic Kingdom Park on that date. Guests who wish to experience the show may enter the park one hour prior to park opening. Some shops on Main Street, U.S.A. may be open at this time, including Main Street Bakery.