Kim Kardashian pops out of a birthday cake in a shimmering bikini to show even her milestone 40th can be a marketing masterclass.
Since the launch of reality show Keeping Up with the Kardashians in 2007, Kim has led the charge in learning to monetise the fame it brought. And then there is her shapewear range, Skims – on course to become a billion-dollar brand. It reportedly took $2million in minutes following its launch last year.