Sharon Osbourne has moved on from 'The X Factor'.

Sharon Osbourne

Sharon Osbourne

The 66-year-old star was first a judge on the show from 2004 to 2007 before making returns in 2013 and again from 2016 to 2017, but she has ruled out a comeback despite Simon Cowell's singing competition getting a revamp for future series.

Appearing on ITV's 'Loose Women', Sharon was asked about reprising her role and said: ""No. I mean, nobody's asked me, but no.

"It was a part of my life, I absolutely had the best time, met great, amazing people, had the best fun! I was naughty, had a laugh, you know. But that part of my life is gone and you can't go back, so I have to move on for myself."

Earlier this year, the star claimed she was axed from 'X Factor' for being "too old".

The talent show judge had been lined up for the 2018 series but - despite plans to have her appear as a fifth member of the panellist for the live shows - she released a statement shortly after the competition launched to say she'd decided she was no longer needed in the role, and she has since explained why she snubbed a slot on US reality programme 'The Masked Singer'.

Sharon alleged: "I was signed on to do another show at the time.

"I was signed to go to England, and then Simon Cowell changed his mind and thought I was too old. Simon goes, 'She's old. We need somebody young.' "

She added: "So if you want young, fire yourself and get rid of those man t**s."

Late last year Sharon, 66, took another swipe at music mogul Simon - who appeared alongside Louis Tomlinson, Robbie Williams and Ayda Field on the panel - as she blamed the 'X Factor' boss for the show's ratings decline.

She said: "Unfortunately, not out of malice, but I am only saying this because Simon's quote thinks it is funny, that the figures have dropped, and dropped and dropped through the course of the show.

"I am not saying it was all me at all, but [it's because of] his decision to change the show again and again and again."