During the show, you hear 8 actual Beatles songs:
A Hard Day's Night: During Stuart Best's documentary, especially the held guitar note at the beginning of the song when we are shown the Beat-Alls' half-lit faces.
A Day in the Life: When we are shown the "Most Wanted" poster of the Beat-Alls, we hear the build-up of the song which featured a full orchestra. We also hear the held 45-second piano note at the end of the episode.
Hey Bulldog: We hear the guitar solo of "Hey Bulldog" when Sgt. Pepper is begging the Girls to come back.
Strawberry Fields Forever: We hear the song when the Professor is confronting the Girls for not helping save Townsville from the Beat-Alls. We also hear it when Mojo Jojo first meets Moko Jono at the bank.
While My Guitar Gently Weeps: We hear the guitar solo by Eric Clapton when the Beat-Alls enter the bank.
I Want You(She's So Heavy): You can hear the guitar solo when Mojo is climbing the ladder.
The Ballad of John and Yoko: You can hear it when the Beat-Alls are robbing all the white stuff at the market.
The End: Listen closely and you can hear the drum solo from "The End" when the 3 Beat-Alls are on the rooftops destroying the city.