The 90-second advert sees John, 73, send up his flamboyant reputation, while Caine mocks himself by repeating the famous catchphrase used by his innumerable impersonators: "Not many people know that".

The commercial, released on Wednesday (February 10), features John pretending to audition for the role in the advert, and receive criticism from the director for his acting skills and for being too "showbiz", before the singer delivers an impression of Caine himself.