Roman Kemp has revealed that some celebrities showed their true colours at a star-studded Halloween bash he once attended courtesy of Jonathan Ross , and he wasn't impressed by what he saw. Speaking on the Halloween episode of his You About? podcast with singer Tom Grennan , The One Show presenter, 32, opened up about the extravagant Halloween party, which he decided to go to in costume as the terrifying Miss Trunchbull from Matilda. Roman explained that the disguise gave him an unexpected