Lady Gaga, 23, real name Stefani Germanotta, had been told she could have whatever she wanted for her performance on the ITV show, and she went ahead and made her demands. But when Cowell, 50, heard her request he refused to comply, and replaced the animals with hordes of semi-naked male dancers.
“Simon wanted her on the show because he knows she will put 110 per cent into the performance. She has never done anything mediocre since she hit the charts," the Mirror quoted an X Factor source as saying.
“She is always way out there with her costumes and dance routines. But not even he 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.
“After the MTV awards Gaga knew that getting animals on stage was a long shot but she was just pushing her luck. She had other ideas and she's thrilled with what the X Factor team has gone with. People are still going to be stunned," the source added.