Katie Price stripped off in the toilets after ranting at guests at a Christmas party.

The 38-year-old star and her ex-boyfriend Dane Bowers were paid £13,000 to appear at EnergySave's festive celebration but now Jason Rowan is asking for his money back because of her outlandish behaviour.

He said: ''She was drunk when she arrived and as the evening went on she just got worse and worse. She was a total nightmare ... I paid £13,000 to Dane Bowers' company for the pair of them and wanted a really positive vibe and two celebrities to meet my staff, have a happy time and hand out annual prizes inluding Rolexes. But she was out of it when she was on stage shouting and swearing at people and she was basically drunk and obnoxious all night.

''At one stage sitting next to me at the top table she just grabbed my crotch and asked my wife which one was sleeping with me. It was so embarrassing. She made a terrible remark to a woman with short hair about cancer and then stripped off in the ladies' loo in front of several women including my 16-year-old daughter who she swore at. Everybody couldn't wait to see the back of her. I want a refund because she spoiled the party rather than enhanced it. But I don't suppose in reality I will see a penny of it.''

The businessman had shelled out £100,000 in total for the party for his 180 staff and even booked a room at the nearby Priest House hotel so Katie could get ready.

One worker added to The Sun newspaper: ''Katie was drunk when she got there and things just got worse as the booze flowed. She was outrageous.

''She blew her nose on a tablecloth thinking it was a napkin and grabbed Mr Cowan's lagging under the table. She asked him if he was going to sleep with her or his wife and Mrs Cowan was furious and gave her a piece of her mind.

''She was supposed to be there to present our annual awards but got up on stage and was calling guests 'f***ing little s***s' when they shouted for her to sit back down. It was chaos. She kept saying her ex Dane was the love of his life but he had had a skinful as well.''