Simon Cowell was fuming after his small stint on Celebrity SAS: Who Dares Winsrecently, according to the show's new recruit,Lucy Spraggan.
The dad-of-one, 65, who walked the X Factor star, 34, down the aisle last year, is not part of the lineup, but pops up in the Channel 4 endurance show when he calls Lucy to try and help motivate her.
The singer, who has been close friends with Simon following her harrowing experience on the X Factorin 2012, is reportedly hung up on by the DS (directing staff) when he tries to rally his pal, leaving the media mogul "so angry".

Speaking to The Sun, Lucy said: "The DS [directing staff] hung up on him and he was like, 'I’ve never been so angry'." In the interview, the singer also said the 65-year-old considered appearing on the show himself, but she was worried he’d ‘die’.
She revealed: "He thought it was a great idea, me doing the show. He knows I love being outdoors. We do a lot of shooting air rifles and stuff together, so he knows this is my thing, testing my mental resilience.
"It was just funny because he had said, 'Oh, maybe I’ll try and have a go at it'. I was like, 'Simon, you would literally die!'. It was funny because it really contextualised how hard it was that I just straight away said to him, 'You would have no chance.’
Lucy bestowed the biggest honour on the media mogul when he walked her down the aisle last year. The former X Factor boss also made a speech at her wedding to the "love of her life" Emilia Smith.
And while many fans may be bamboozled at Lucy's close bond with Simon, she's spoken fondly about him and how she knows a "very wholesome version" of the multi-millionaire.
Lucy - who is estranged from her biological dad - and Simon were able to build a strong bond over the last four years after he apologised for not supporting her following her harrowing sex attack in 2012 while she was filming The X Factor.
At the time, Lucy was only 21 years old and was sexually attacked by a hotel porter named Soby John, who used his hotel key card to enter her room after she had passed out drunk after celebrating Rylan Clark's birthday.
But it wasn't until the death of Caroline Flack in 2020, Lucy felt able to speak out about her ordeal. Her attacker was sentenced to 10 years and was deported back to India, after serving three years of his sentence.
Lucy now has her sights set on winning Celebrity SAS in which she stars alongside Love Island’s Tasha Ghouri, The Traitors’ Harry Clark, S Club’s Hannah Spearritt and former glamour model Rebecca Loos.
* Celebrity SAS: Who Dares Wins returns at 9pm on Sunday to Channel 4.
Simon's rep declined to comment on this story when contacted by the Mirror.
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