This ITV star looks a world away from the polished professional we're used to seeing in a hilarious throwback photo.
The media mogul, 63, is best known for his immaculately groomed beard and tailored trousers, but in an unearthed snap, he's unrecognisable.
On Saturday night's Britain's Got Talent, Bruno Tonioli told Amanda Holden that Simon Cowell used to have long locks during the show on Saturday, but the multi-millionaire begged his pal not to Google it.