When he's singing Herbert the Pervert is spoofing Audrey in Little Shop of Horrors.
Although the episode's third act is set in Walt Disney World in Orlando, Florida, the park's scenery and ride locations are actually more similar to that of Disneyland in Anaheim, California. Examples include the Matterhorn Bobsleds and original Haunted Mansion in the background, and the scene on the Indiana Jones ride, which is exclusive to Disneyland.
Yet another Star Wars reference is utilized in this episode when Peter is conducting the Sand People choir. Peter's boss Angela is voiced by Carrie Fisher, Princess Leia in the Star Wars franchise.
First episode to reference the Back to the Future trilogy.
Stewie is shown to complete 94 rotations when trapped in his rock piercing hovercraft.