Sharon Osbourne thinks Simon Cowell will do whatever it takes to get his "fat face" on television.

Sharon Osbourne

Sharon Osbourne

The 65-year-old judge is at risk of being fired from 'The X Factor UK', which she's meant to be returning to later this year for the live shows, after she unleashed a vicious attack on her boss, in which she claimed she wanted to drown him, and branded the talent series a "f***ing karaoke."

Speaking on 'The Howard Stern Show', Sharon called the 58-year-old music mogul a "f***ing pain in the arse" who "will do whatever" to get his "f***ing fat face on TV."

Asked who she would save if they were on a sinking ship, Sharon joked: "We would put a f***ing brick around his neck and throw him over. I will drown you mother f***er. Absolutely...he's gone."

Despite her cruel words, Sharon - who is married to Ozzy Osbourne - is "still waiting to hear" whether she'll receive a pay rise from ITV this year as her contract has a clause in it meaning she must be paid the same - around £10 million - as the highest paid stars on the talent show.

She explained: "So Simon and I have a clause in my contract, 'favourite nations.' Simon goes to the press and goes, 'This is the best £10 million I have ever spent'.

"So I go, 'I have favourite nations, where is my f**king £10 million? I have a clause'. I am a businesswoman. But after I just said I am going to tie a brick around his neck and let him drown and now I am talking about it, he will be f**ked."

And, although she'll only be present for the live shows - sparking rumours she's being silently dropped after this year - Sharon is glad she doesn't have to listen to "those little sh*ts."

She said: "Oh f**k, I don't have to have those kids singing in my face. Those little shits. They all suck. It is like, 'Hey, is this f**king karaoke or what?' "

This year's panel is comprised of Simon, Robbie Williams and his wife Ayda Field and Louis Tomlinson after Louis Walsh and Nicole Scherzinger were dropped from the line up.