Simon Cowell's sister-in-law has admitted he could be a "groomzilla" when he marries fiancée Lauren Silverman in London next month.
The media magnate, 62, and Silverman, 44, have been together since 2013 when news of their affair went public as it was confirmed Lauren was pregnant with their first child, son Eric.
She filed for divorce from businessman Andrew Silverman shortly afterwards, and Simon and Lauren have remained as a strong couple ever since.
