Simon Cowell has banned Lady GaGa from having lambs on stage, when she performs on The X Factor this Sunday night.

A source told The Mirror: “She is always way out there with her costumes and dance routines. But not even [Simon] was prepared for what she had in mind. He thought the animals request was a joke but then realised it was Lady GaGa.

“Simon is an animal lover and wasn’t against having the lambs running around, but he said no because of health and safety.”

GaGa will be performing her single Bad Romance on the show and will reportedly dance with semi naked male dancers as part of her routine. We can’t wait!

The insider promised: “People are still going to be stunned.”