David Walliams has teased that Simon Cowell is "one of the most annoying people" he has ever co-starred with.
The comedian, 50, has worked with the record executive, 62, on Britain's Got Talent for a decade, with the former having joined the popular ITV talent show in 2012.
The pair - who return as judges for the new series - often mock each other, including recently over Walliams' short-lived marriage and Cowell's ' lack of knowledge.'
