Robbie Williams made an incredibly harsh comment about his X Factor boss Simon Cowell.
The pair are great friends, with Simon reportedly "begging" Robbie to join the panel along with his wife, Ayda Field, and One Direction sensation Louis Tomlinson.
However, he took things pretty far with a very harsh jibe at the expense of Simon.
After they watched Danny Tetley’s VT, which showed the judge a few years ago, when Danny first performed on the show for Simon.
Simon looked a little younger and a little more "fresh-faced," which became the butt of a joke from Robbie, who returned to the show after his gigs abroad.
He said to Simon: "It was nice to see Simon four faces ago."
Robbie loved making fun of Simon
- Chic star Nile Rodgers reveals his most shocking x-rated rock n roll behaviour
The audience ooed and gasped in shock at this comment, as they could not believe Robbie had gone so far to slam his mate.
Simon, not to be outdone, responded when it got to his turn to talk about Danny’s performance, saying: "I want Nile back. Bring back Nile Rodgers."
The group later dug their claws into Simon, of course, in the name of fun, when he stood and clapped for his contestant, Scarlett Lee, throughout the judges’ comments.
They kept trying to shut him up, so they could speak out, and in the end they mimicked him back when he went to give feedback, all rising to their feet and clapping over him as he tried to talk.
Louis even threatened to give Scarlett "bad comments," to stop his judging colleague from getting in the way.
Sadly, Danny’s VT didn’t do enough as he was one of the two booted off the show, along with Brendan Murray.
The X Factor continues at 8pm on Sunday on ITV.
X Factor live shows
Complaints about Cheryl’s performance
Cheryl responds to backlash
Bye bye Bella and Shan
Simon’s big announcement