Harper Beckham could be about to become richer than her parents with the launch of her beauty brand. The budding businesswoman, 14, is the daughter of Spice Girl Victoria Beckham , who has gone on to head up her own fashion empire since her days as a pop star, and footballing legend David Beckham . As the youngest child of the world-famous couple, who have a reported joint net worth of more than £1 billion, Harper has seen her elder brothers Brooklyn, Cruz and Romeo all go off into showbiz in