Louis Walsh has reignited his longstanding feud with Cheryl ahead of his return to the small screen this weekend alongside Simon Cowell and Nicole Scherzinger.
The music manager, who's back as a judge on Celebrity X Factor, revealed his true thoughts about his former co-star's musical ability in a savage joke about her singing.
Speaking to Daily Star Online at the 2019 Spectacle Wearer of the Year Awards on Tuesday night, Louis said Cheryl would have no chance of winning Celebrity X Factor.
Louis, 67, said: "Look, she is in the dancing show [Greatest Dancer]..."
"X Factor as a contestant? As a contestant she would be good. I don't know if she could win.
"She doesn't mime. It's called lip-syncing... lip-sync for your life."
Louis first sat on The X Factor judging panel with Cheryl in 2008 and they worked together until 2010.
The duo have endured a strained relationship for more than a decade, which first kicked off when Louis managed Girls Aloud from 2002 to 2004.
Cheryl and Louis have been enemies ever since he managed the girl band, with Cheryl accusing him of "taking cheques" for no work and calling the band members "fat".
In the past, Louis swiped: "I am a much better manager than she is a singer.
"She seems to be in the fashion business now, selling fake hairpieces, fake eyelashes, fake everything."
In 2015, boss man Simon Cowell commented on the pair's ongoing feud.
Speaking on Good Morning Britain at the time, he mocked the two judges: "There was always going to be a clash, they’re like Tom and Jerry these two.
"I wish they’d fight more on the show actually."
However, it seems that Simon may actually agreed with the Irish music boss, as he's not invited Cheryl onto the judging panel for X Factor: Celebrity.
The show kickstarts this weekend with Simon, Louis and Nicole returning to the famous judging panel.
Cheryl might not have got the call for the X Factor but she appeared as a coach on The Greatest Dancer in August.
The ITV singing contest is back, but not as we know it, with famous faces fighting for a chance to be crowned champion and come out with a record deals.
"It's time for something different," says Simon. "My credibility is at stake. If it doesn’t work I look like a total idiot. So no pressure."
The X Factor: Celebrity airs on ITV 12 October at 8:35pm