The Simpsons — Season 23, Episode 22

• 
  Dan Castellaneta
  as Homer Simpson / Abe Simpson / Barney Gumble / Krusty (voice)
• 
  Julie Kavner
  as Marge Simpson / Patty Bouvier / Selma Bouvier (voice)
• 
  Nancy Cartwright
  as Bart Simpson / Nelson Muntz / Ralph Wiggum (voice)
• 
  Yeardley Smith
  as Lisa Simpson (voice)
• 
  Hank Azaria
  as Moe Szyslak / Chief Wiggum / Apu / Comic Book Guy / Carl (voice)
• 
  Harry Shearer
  as Ned Flanders / Mr. Burns / Smithers / Skinner / Lenny (voice)

• 
  Lady Gaga
  as Lady Gaga (voice)
• 
  Kevin Michael Richardson
  as Conductor (voice)

Writer:
Jeff Westbrook
Tim Long

Director:
Chuck Sheetz