Perhaps unable to wait until he was away from the cameras, the X Factor mogul was pictured holding his ciggie while posing for photographers on Monday night (6 October).
We wonder what girlfriend Lauren Silverman had to say?! She looked lovely in a floor-length black gown with embellished gold shoulder details while posing outside the Grosnevor Hotel in central London.
Simon, meanwhile, kind of looked like he'd left the house in a hurry and hadn't quite finished getting ready...
The night, however, was all about the Pride of Britain honorees - not the celebrity attendants. Simon and his X Factor co-stars were there to present a 'Child of Courage Award' to 11-year-old Renee-Mai Bolter.
Brave Renee-Mai protected her family and put herself in harm's way when they were held hostage by a man who'd developed an obsession with her mother. Her quick thinking meant she was able to secretly stash a mobile phone during the ordeal, meaning they could call the police.