Andrew Morton published an unauthorised biography in 2000 about which couple?

Andrew David Morton is an English journalist and writer who has published biographies of royal figures such as Diana, Princess of Wales, and celebrity subjects including Tom Cruise, Madonna, Angelina Jolie and Monica Lewinsky; several of his books have been unauthorised and contain contested assertions.

One of the unauthorised books is called 'Posh & Becks'. It is about David and Victoria Beckham. Morton termed them as "king and queen of pop culture". She is a fashion icon with a lust for fame and he is possibly the most famous athlete on the planet. Together they are one of the most loved and hated couple on Earth. This sensational, highly addictive biography delves beneath the Beckhams' glossy, glamorous facade to expose the real Posh and Becks behind the headlines and the hype.