Cast your mind back a few years and you will remember how much Robbie Williams and Gary Barlow used to HATE each other.
And while their feud was all water under the bridge when Robbie rejoined Take That back in 2010, he has risked falling out with Gary all over again after publicly backing controversial 'X Factor' act Rylan Clark.
Gary has threatened to fall out with Robbie after he backed Rylan Clark
Gary has been hugely critical of the singer, most recently hitting out at him for "turning the show into a soap opera", but he has found one member of Take That who is a fan, when Robbie posted on his official blog: "TEAM RYLAN ALL THE WAY. VOTE RYLAN X."
Gary has openly criticised Rylan
When 'Xtra Factor' hosts Caroline Flack and Olly Murs broke the news to Gary on Sunday night's show, he told them his friendship with Robbie was over.
"Twenty years knowing each other. We did a single together, and it's all over. In five letters, it's all over," he said.
"I'm team Robbie Williams," Rylan's mentor Nicole Scherzinger added.
The fallout could continue live on air on next week's results show when Robbie makes a guest appearance to perform new single 'Candy'.
Here's hoping for a Robbie-Rylan duet. We're envisaging a spandex filled rendition of 'Let Me Entertain You'.
Meanwhile, Gary is said to be growing increasingly frustrated with 'The X Factor', as his rift with show boss Simon Cowell deepens.
He is said to be preferring new judge Nicole, and is calling her to get updates on the show instead of head judge Gary.
A source told The Sun: "Simon's irritation with Gary is well known. He's given him the Over-25s - two of whom have been binned.
"And he's been refusing to call Gary. Instead he's been buttering up Nicole on the phone - saying her comments are best and don't sound scripted like Gary's."
We have to admit, Nicole's comments are pretty sh'mazing (™ N. Scherzinger, 20 October 2012).
