Sharon Osbourne once revealed why Ashton Kutcher was the rudest star she’d come across.

The former reality TV star has never been shy to speak her mind and often, whether people like it or not, shares her thoughts about anything and anyone.

Osbourne, who turned 72 yesterday (9 October), is known for saying it how it is in the celebrity world, so it should come as no surprise when she revealed who the worst star she’d ever met was during a game on E! News.

She was taking part in a game of ‘Stir the Pot’ with her daughter Kelly, 39, where both were happy to spill the beans when needed.

Fans were excited when the family announced their return to the limelight with their podcast coming back at the back end of 2023, but after a couple of episodes last year, they haven’t uploaded any more.

The mum-of-three’s interview with the outlet did the rounds shortly afterward, as she was offered the juicy challenge to ‘name the rudest celebrity you’ve ever met’.

Unsurprisingly, the former X Factor judge didn’t shy away from giving us an answer, though she struggled to remember their name at first.

“The guy that’s married to an actress and he used to do That ‘70s Show,” Sharon said – quite the credentials.

Kelly knew exactly who she meant: “Oh, Ashton Kutcher? Really?”

Her mum continued: “Yes. Oh rude, rude, rude, rude little boy.”

In case she hadn’t quite gotten her point across, Sharon added: “Rude, rude, yes. Dastardly little thing.”

Kelly admitted: “I was not prepared for that.”

The TV star didn’t give much information about why she has such strong feelings towards the actor, but has previously expressed it.

Osbourne called him ‘rude’ several times during the admission (Matt Winkelmeyer/Getty Images)

Back in 2018, Sharon told Larry King Now about an episode of her old show The Talk that didn’t go so well.

She said: “I didn’t get on with that one guy, that Ashton Kutcher. Didn’t get on with him at all.”

Although, the music manager did add the actor had a ‘bad attitude’ because she didn’t remember his name properly – something she still appears to struggle with.

Sharon did however talk about apologising to Justin Bieber for a feud she ignited.

She said: “I have apologised to him before, and it’s Justin Bieber, because he did something. And when I was doing another talk show, I said, ‘He’s really bad, and how can his parents let him do that?’ and all that.

“And I’m like, ‘Who am I to say that he’s bad? He’s a kid. Leave him alone.’ And I felt really terrible after saying it, and I felt such guilt.”

Not sure we’d want to get on the wrong side of Sharon Osbourne.

LADbible has contacted Kutcher’s reps for a comment.