This week Patti LuPone went from the Broadway stage to the clubhouse when she stopped by Watch What Happens Live! with Andy Cohen.

During the show a very brave viewer called in to ask the War Paint actress her thoughts on Madonna taking the lead in the Evita movie—the role LuPone made famous onstage and won a Tony for.

"Did you and Madonna ever have any conversations about your two iconic performances as Evita?" the caller asked.

LuPone recalled how her and the Queen of Pop have had one interaction and it was during a party where the only thing Madonna said to her was: "I'm taller than you."

Of course, host Andy Cohen couldn't let the topic of Madonna go and asks how she felt the singer did in the film version of Evita.

"I saw 'Buenos Aires' and I thought it was a piece of sh*t," the Broadway legend said, referring to a music video of the number that aired on MTV when the movie was released.

Oh, but LuPone doesn't stop there. She continues to go in on Madonna's acting and her entire filmography:

"Madonna is a movie killer. She’s dead behind the eyes. She couldn’t act her way out of a paper bag. She should not be on film or on stage. She’s a wonderful, you know, performer for what she does, but she is not an actress. Bing.”

Bing indeed. Let's pray LuPone never sees Swept Away.

Ryan Murphy, are you taking notes on this feud?