Read our Privacy noticeSimon Cowell is facing a High Court challenge over a multimillion-dollar agreement “written on a napkin”, court documents reveal. Mr Rosenblatt, himself a lawyer, began working for Mr Cowell in 2018, Ms Ratcliffe said. She said it was “difficult to communicate” with Mr Cowell, who was “unpredictable” and “extremely emotional”. She added: “The terms of that offer were written on a napkin which Mr Cowell then signed.” This was later written up and signed by Mr Cowell in February 2023 at his Cotswolds home, Ms Ratcliffe said.