UFC chief Dana White has met a lot of big names - be it cageside at his martial arts events or at glitzy Hollywood parties - but they're not always nice people.

In fact, the superstar businessman has gone out of his way to reveal the rudest celebrity he's ever met... and it may not come as too much of a surprise to many.

Speaking on 'The Katie Miller' podcast this week, White, 56, explained that disgraced hip-hop mogul Sean 'Diddy' Combs takes the title, telling a story to go along with it.

'Oh, Diddy... 100 percent the biggest douchebag ever,' he said when asked for the worst celeb he's crossed paths with in his life.

'Tony Hawk used to have these charity events, and when my kids were little, you'd go to these charity events and lots of celebrities would be there. So everybody would do things for each other's kids.'

White went on to explain that he took his niece to one particular Hawk party, and she became star-struck when Combs - then one of her idols - arrived at the bash.

He explained that he encouraged her to go and ask him for a photo, but she quickly returned shaken by her meet-and-greet with the producer.

'The guy's there with f***ing 10 security guards, right?' he added. 'You need security at a f***ing kids event?

'And then they were rude to her and scared her. That's who's listening to your f***ing s***ty music, okay? That's who's listening to this, okay? 

'Are you f***ing kidding me? And that's how you're going to treat some girl that's a fan and wanted a picture with you?'

UFC boss White added that one of his most iconic fighters, Conor McGregor, had also previously met Combs and been left underwhelmed by his friendliness.

In fact, the Irishman 'wanted to punch him in the face', according to White.

Combs, 56, is currently serving a four-year prison sentence at a federal jail in New Jersey after he was convicted in October on charges of transporting individuals for prostitution.

He was facing a much longer sentence, but was acquitted by a Manhattan jury of the more serious sex trafficking and racketeering charges at the end of an extremely high-profile two-month trial.

Combs is expected to be released in April 2028.