Disney will officially welcome Rapunzel into the Disney Princess fold on October 2nd, at a special event held at London's Kensington Palace.
The firm is also giving fans the chance to feel a part of the occasion by participating in an online video contest on Disney.com.
The Your Princess Moment - The Story Begins with You video upload contest allows fans aged 12 and under to submit a 45-second video singing part of one of four songs from the upcoming Disney Princess Fairy Tale Songs compilation album.
Alternatively, girls can submit a video recreating a favourite Disney Princess scene, dressing up or performing a dance.
Videos entered up to September 12th are eligible for the trip for four to London for the royal celebration. For videos entered by October 4th, prizes will include a 3D TV and DVD assortment, plus the Disney Princess Ultimate Dream Castle from Mattel.