In this episode all the students say Hollywood Arts has never had a prom before. But in the first episode, 'Pilot', Rex says to Cat after she runs out to tell Tori, Robbie, Andre and him that Sikowitz wants them to come back into the classroom, "Just like you wanted a date to the prom last year."
Tori is on her laptop in the plane while sitting next to Trina. When she goes onto her video chat profile, there is a list of usernames of people online. One name is DanWarp, which is the website name of the show's creator, Dan Schneider.