Many of the celebrities wore loose fitting outfits, as they tried to keep cool with the sun beating down on London's Royal Festival Hall.
Not so Joe Lycett. The comedian arrived dressed as Queen Elizabeth I, in a white cape and gown with a ruff around his neck.
Lycett did carry two different types of fan on the red carpet, one manual and one battery-powered, as temperatures soared.
But that wasn't enough to keep him cool. "It's boil in a bag," he said of his silver ensemble.
He also liberally applied sun cream, not only to himself but also to the TV critic Scott Bryan on the red carpet. "It was very surreal but to be honest, I'm not sunburnt now so I'm very happy," Bryan later remarked.
Lycett later won best entertainment performance for his Channel 4 show Late Night Lycett.
The comedian came on stage and promptly declared: "I lost a bet, I'm so hot and I need a piss."
He added: "Thanks to my mum and dad, Anne Boleyn and Henry VIII."