Princess Diana's former butler blasted for taking part in 'Celebrity Big Brother'

Paul Burrell, who the late royal referred to as her "rock", has joined the Channel 5 reality TV show for a few days to show the American housemates how to be good servants to their British rivals, who are set to become members of the reality TV show's Royal Family this week.

However, viewers have taken to Twitter to slam him for "cashing in" on his royal connections.