The Simpsons opening sequence Bart writes "Being right sucks", a reference to the 2000 episode "Bart to the Future" where Lisa succeeds Trump as Commander-in-Chief. During the opening sequence, Lisa is seen being ejected from band rehearsal due to her non-conformist saxophone playing. She exits the room playing a saxophone solo, which sometimes changes. Some of the solos have similarities with pieces by Donovan, Frank Zappa, James Brown, and Charlie Parker. "The Simpsons" composer Alf Clausen said that the session musicians who perform her solos do not try to play at the second grade level and instead "think of Lisa as a really good
The Simpsons Guy Appel then asked for permission from "Simpsons" executive producers Matt Groening, James L. Brooks and Al Jean to use their characters. This was approved; Appel was previously a writer-producer on "The Simpsons" for four seasons, and retained his former colleagues' trust. Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith and Hank Azaria guest star as their "Simpsons" characters, but Harry Shearer, the final main cast member of "The Simpsons", was unavailable. Asked how he felt about the crossover, Shearer replied, "Matter and anti-matter." "Family Guy" writers pitched several storylines for the crossover, including one in which the Griffins stay with