“Joker: Folie à Deux” picks up with Arthur Fleck ( Joaquin Phoenix ), institutionalized at Arkham Asylum, awaiting trial for his violent crimes. As he grapples with his fractured identity, Arthur finds love with fellow inmate Lee (Gaga) and begins embracing the music that has always played inside his chaotic mind.

"Well, I know what I'm going to be showing him later. That's so cool, thanks for showing me that," the singer said.

Rare is the musical that can waste a pop megastar of Gaga’s caliber. Rarer still is the one that will send you away humming no tune, tapping no toes. If you bought a ticket to “Joker: Folie à Deux,” then the joke — yet again — is on you.