Considering that the The X Factor judges have to sit next to each other week in and week out for several weeks, you'd think that they'd try to stay on friendly terms.
But this year's panel have shown that they're not afraid to throw some shade, with Robbie Williams managing to insult his fellow judge Louis Tomlinson by making a dig about Louis's band One Direction.
Of course, Robbie's jab at Louis only came after he'd suffered a dig of his own from wife Ayda Williams, so maybe this is just the new normal for the panel.
The tension began after one of Robbie's acts, newly-named boyband United Vibe, performed 'Slow Hands' – a song by another fellow 1D member, Niall Horan – and Simon and Louis agreed that the whole thing looked a tiny bit too staged.
"It's lovely, but I just want to see you loving each other a bit more," Louis explained.
Ayda, meanwhile, disagreed and praised the group, adding: "You guys just got together. I thought that was a great song choice and you know what, you guys get on really well which is important.
"The worst thing in a group is when one person thinks they're better than everybody else."
Dig one at Robbie, there.
But Robbie clearly decided that he wasn't going to be the only one suffering a put-down from the panel, as he then suggested that United Vibe is doing a lot better than One Direction were at a similar point in the competition.
"I feel like a proud dad," Robbie said. "In the early days of Take That when we'd been together for a month or six weeks, however long it is that you're together now, you are leaps and bounds beyond us.
"And also you're leaps and bounds beyond One Direction at this point."
It's safe to say Louis wasn't too pleased with that one – even if Simon himself was a bit more amused.
Fortunately for Louis, though, all the One Direction fans watching at home were quick to defend the band:
The "new" One Direction pic.twitter.com/YtNfSNRzxU
- Woman Like Andrea ❯❯❯❯ (@Andr3a_2307) October 20, 2018
- Lisa Marie McKinney (@Lisawestlife10) October 20, 2018
Robbie's got some nerve saying what he said 😂😂
- Elena Pierre (@_elena_660) October 20, 2018
You trying to sell them as the new 1D will backfire against them! Just saying pic.twitter.com/NJsaMgpfBB
- Sassy_Daiana🏳️🌈 (@Diana_with_3_As) October 20, 2018
C'mon Robbie! @onedirection is the best, don't deny the fact @robbiewilliams ! #UnitedVibe can be better than #TakeThat but not better than @onedirection #thexfactoruk #RobbieWilliams @Louis_Tomlinson @Harry_Styles @NiallOfficial @LiamPayne @zayn @TheXFactor
- Anushka Ajay Karnail (@Virationer) October 21, 2018
Thankfully Louis has shown that he's more than capable of standing up for himself, as earlier in the show he shut down Simon Cowell for criticising Louis's act Brendan Murray.
When Simon called Brendan's performance "boring", Louis was quick to tell Simon to "pipe down for a minute" and "shut up".
If all this shade is being thrown in the first live show, we can't wait to see how things will stand closer to the final...
The X Factor airs its results show tonight (Sunday, October 21) at 8pm on ITV.
('You Might Also Like',)