CELEBRITY Big Brother star Louis Walsh has been no stranger to catty swipes in the ITV series - and his former TV co-star Cheryl was his latest target.
The Girls Aloud songstress, 40, and former music manager featured alongside each other on The X Factor's judging panel.
Louis, 71, also managed the Sound Of The Underground hitmakers after they were formed on original ITV reality series, Popstars: The Rivals.
He hasn't shied away from referencing Cheryl during his Celebrity Big Brother stint, this time taking a tacit dig at her vocal talents.
While talking about the pop band - who have re-formed for a tour to honour late band member Sarah Harding, 39 - he simply told his CBB housemates: "Nadine's a good singer."
While heaping praise on his fellow Irish native, he failed to mention Cheryl, dealing a huge snub.
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The omission of the mum-of-one came after he took another blunt swipe at the Promise This hitmaker, who went on to have a blossoming solo career.
Speaking about Cheryl to Ekin-Su last week, Louis confessed: “I didn’t always get on with her.”
He then continued: “I can’t say anything bad at all about Girls Aloud. They were brilliant. Great looking girls, great songs."
Their gripes might understandably have been sparked by him calling the girl group, who he managed from 2002 to 2004, as "fat."
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The Dublin native, who has a pared-back mansion in London, later slammed Cheryl and said: “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.”
Celebrity Big Brother line-up
Who are the 13 stars appearing in the Celebrity Big Brother house? The Sun's Jamie Downham takes a look...
Sharon Osbourne - TV legend - who is a "house guest" on a megabucks deal - said she was doing the show for "a good time not a long time"
Louis Walsh - Irish boyband manager who has never knowingly backed down from a fight and is not above pulling rank over the double bed
Ekin-Su Cülcüloğlu - As we know from Love Island, the Ek-ster is capable of throwing about some dramatics to claw her way to the final
Levi Roots - Reggae Reggae Sauce sauce packs a bit of a kick, but its inventor seems quite mild-mannered. Will that change under pressure?
Fern Britton - The former This Morning star called out Phillip Schofield - don't think she won't do the same to anyone who tangles with her
Colson Smith - You'll probably know him best as Corrie's Craig Tinker - but prepare to find out he's not much like his character
David Potts - Ibiza Weekender's breakout star has left that show behind - as well as his trousers by the look of things
Gary Goldsmith - Kate Middleton's uncle is a big signing for ITV, but has proved a divisive booking among viewers
Marisha Wallace - It's not CBB without the role of 'American who doesn't know what they've let themselves in for' and she's doing brilliantly
Nikita Kuzmin - The Strictly pro is coming onto the show fresh off the show's tour. Poor lad probably just wants a rest
Zeze Mills - the social media star has a "no holds barred interview style" - and she hasn't backed away from calling people (well, Louis) out
Bradley Riches - The actor played kindly James McEwan in Netflix hit Heartstopper and he seems just as sweet in the house
Lauren Simon - She's a Real Housewives of Cheshire star and you really don't get on that show by being shy and retiring
The following year Louis described Cheryl’s rose tattoo on her back as “Chavarama” and something “Katie Price would’ve done."
Needless to say, Louis has admitted the pair "don't stay in touch."
Late last year, he reignited the feud and said: "I don't have a relationship with Cheryl, I don't bother."
He continued to Ladbrokes Live: “I haven't seen her, I haven't heard from her. We didn't get on great on X Factor because she didn't get the fun of it.
“She didn't understand that side of it.”
Louis then attempted to smooth things over and added: "But she is a nice girl, she is talented, and I do think she should be making more music, to be honest. I really do."