Believe... There's Magic in the Stars was a nighttime fireworks show at the Disneyland Resort in Anaheim, California. The show was introduced in early 2000 for the Resort's 45th Anniversary, replacing the long-running Fantasy in the Sky. At the time, the show was the most complex and lavish ever to be produced by the Disneyland Entertainment team. Many guests formed an emotional attachment to the show and regarded it as the best ever. 
The main musical theme of the show was the song "Believe... There's Magic in the Stars", composed by Don L. Harper; this theme was interwoven throughout the entire show. Most of the song was sung by Sandi Patty.
The show, like any other Disneyland fireworks show, utilized musical themes from various Disney movies. Those themes helped to illustrate the message and plot of the show, which is just to believe in magic.
The show was broken up into various segments, based on the themes of the movies and Disneyland, each of which were introduced with the "Believe..." theme song.
The show began with a woman's voice gently whispering the word "believe", the show's main theme. A child's voice was heard saying "I wish I never had to leave this magical place", otherwise known as Disneyland. He then wished on a star for his wish and the Believe musical theme began.