Kourtney Kardashian has officially changed her last name - and ditched her middle name.
The 44-year-old took to Instagram to announce that she had made 'Kardashian' her middle name and added 'Barker' as her new surname.
The reality star's full name was previously Kourtney Mary Kardashian and she will now be known as Kourtney Kardashian Barker instead.