Amanda Holden told a Britain's Got Talent singer to 'split' from her husband and go solo in a brutal critique of their semi-final performance on Saturday.
BGT viewers have become rather fond of dance duo Joe and Katherine and their tenacity at trying to win over the judges over the years, returning even after being told 'no'.
They auditioned once again this year for a Little Mermaid inspired audition which saw Joe dressed as Sebastian the crab and Katherine as Ariel.
In a surprising turn of events that made it through this time and performed Into the Unknown from Frozen 2 in the fourth semi-final which aired on ITV on Saturday night.
Dressed as Snow Queen Elsa, Katherine got the song off to a strong start with some powerful vocals before Joe descended from the ceiling dressed as snowman Olaf and launched into a rather bizarre tap dance routine that saw him make a slight stumble at the end, which prompted judge Alesha Dixon to hit her buzzer as she gave the performance a firm thumbs down.
She joked "bring back the crab!" giving her feedback but it was her BGT colleague Amanda who had the harshest words.
As you can see in the clip above taken from ITV , she told Katherine: "I have to say Elsa, you have a good voice. It was good, I think Olaf let you down this evening.
"I'm going to say, I know you're happily married and he's the love of your life but for me, I wonder if you should consider going solo after that."
The virtual audience booed Amanda's advice as fellow judge David Walliams shouted "NO! NEVER!"
And one angry viewer took to Twitter to blast: "Ok but can I say f** you Amanda Holden and aLeisha (sic) it’s not Olaf’s fault he fell B***h be respectful do u know how hard it was for him to get up there and use all his energy for YOUR SHOW no because it’s not you he tried his best and have respect but thanks david having respect."
Stand-in judge Ashley Banjo told Katherine: "Elsa...you can really bang out a song. You really surprised me...I was like wow you can belt. And then Olaf came out, now...if you're going tp tap dance, the tap is rhythmic so try and do it in time.
"And then, you had one job and you fell over at the end so that for me was like argh Olaf you did kind of ruin the end a bit."