Rihanna toasts X Factor appearance with £14,000 champagne bottle

   Rihanna celebrated her X factor show with a £14,000 bottle of champagne (ITV) The singer was given the Dom Perignon at an after-show Halloween party at London’s Whisky Mist club. The fizz was said to be a gift from former American footballer John Elway, although my spies say RiRi, 22, was more interested in the dance floor than the sportsman.The pop star sang a rendition of