Barney's Musical Castle is a 2001 children's picture book based on the live stage show of the same name, released in February 2001. It was written by Guy Davis and photographed by Dennis Full.
When Barney and his friends find a crown in an enchanted forest, it's up to them to return it to its rightful owner, the King, in the castle. Along the way, they all dance, sing, and play through the musical castle.
In this book adaptation of the video, including a few behind the scene photos of the tour:
Justin is seen wearing a different pair of clothing compared to the ones he wore in the video release.
Andy has his shirt tucked into his pants while in the video, he has his shirt untucked and his hair is a lot bigger in the book than in the video release where it is short.
Jessica has on a different hairstyle than the one she had in the video release.
It could be assumed that the photographs taken from the book and the tour were shot before the video's filmed performance.