PIC EXC: Simon Cowell enjoys a walk with partner Lauren Silverman and son Eric

He’s shed more than 20Ibs in weight thanks to a vegan diet.

And Simon Cowell showed off his slender frame while he enjoyed a walk through London with his partner Lauren Silverman and their son Eric in London on Monday.

The music mogul, 61, wrapped up against the winter chill in a white ski jacket as he walked hand-in-hand with the socialite, 43, and their little boy, six. 

Outing: Simon Cowell, 61, showed off his 20lbs weight loss in a white jacket as he stepped out for a stroll with partner Lauren Silverman, 43, and son Eric in London on Monday

Simon also wrapped a grey scarf around his neck and wore black gloves to keep warm as they enjoyed a walk in the snow.

He completed his casual look by wearing a pair of loose-fitting denim jeans and black trainers, and he wore a face mask to keep safe amid the coronavirus crisis.

Lauren, meanwhile, looked stylish in her casual ensemble which saw her pair a puffy grey coat with dark blue gym leggings. 

Comfy: Simon also wrapped a grey scarf around his neck and wore black gloves to keep warm as they enjoyed a walk in the snow

Comfy: Simon also wrapped a grey scarf around his neck and wore black gloves to keep warm as they enjoyed a walk in the snow

Simon has shed more than 20Ibs in weight thanks to a fastidious vegan diet, which he changed in order to keep up with his son Eric, six. 

In August, Simon was rushed to hospital to undergo six hours of surgery after breaking his back in an electric bike accident, forcing him to cancel all his planned TV work for the rest of the year. 

The X Factor judge has been staying in LA while he recovered from his accident, but he was seen looking happy and healthy in Barbados for a family trip last month.

The accident occurred when the powerful machine ‘flew up in the air and did an accidental wheelie’ after he tried to change gears.   

The music boss is thought to have been ‘surprised by the power’ of the bike and knew immediately that he ‘was in trouble’. 

Following the accident, Simon tweeted: ‘Some good advice… If you buy an electric trail bike, read the manual before you ride it for the first time.’

He went on: ‘I have broken part of my back. Thank you to everyone for your kind messages.’

He then added in a second tweet: ‘And a massive thank you to all the nurses and doctors. Some of the nicest people I have ever met. Stay safe everyone Simon.’

Painful: Simon broke his back in August after falling from his electric bike, leaving him forced to undergo a six-hour surgery to try and fix the injuries

Painful: Simon broke his back in August after falling from his electric bike, leaving him forced to undergo a six-hour surgery to try and fix the injuries

Quite a difference: Simon has shed more than 20Ibs in weight thanks to a fastidious vegan diet, which he changed in order to keep up with Eric

Old times: He was notably heavier before opting for a fastidious vegan diet (pictured in October last year)

Quite a difference: Simon has shed more than 20Ibs in weight thanks to a fastidious vegan diet, which he changed in order to keep up with son Eric

His recent injuries and ongoing recovery saw him sit out of the resumed 2020 series of Britain’s Got Talent after it returned following England’s first lockdown.   

In 2019 Simon said of his healthier lifestyle on The Ellen DeGeneres Show: ‘I went to see this doctor in London. We did some tests. And then a month later he said, “You have the worst diet I’ve ever met from any patient.”‘

Simon then added: ‘It’s like the Eric diet because he actually, apart from ice cream, he actually likes water. I mean, who likes water? And his raw vegetables. So I’m on like, the Eric Cowell diet.’

The TV judge’s new physique has impressed his celebrity pals, with his close friend and fellow Britain’s Got Talent judge David Walliams joking the star has become a ‘skinny b***h’.

Healthy lifestyle: Simon's fellow BGT judge Amanda Holden has previously said his weight loss is also the result of him switching to 'skinny lager'

Before: Simon pictured in September 2018

Healthy lifestyle: Simon’s fellow BGT judge Amanda Holden has previously said his weight loss is also the result of him switching to ‘skinny lager’ (pictured right in September 2018) 

Taking to Twitter to share his thoughts on Simon’s transformation, David tweeted a picture of his pal shirtless on the beach and said: ‘Skinny b***h,’ before following his post up with another of Simon that read: ‘Vegan diet my a**e.’

Amanda Holden, who also sits on the panel with Simon for Britain’s Got Talent, has also spoken out about his weight loss and claimed it was the result of Simon switching to ‘skinny lager’.

Speaking on Good Morning Britain to host Piers Morgan, she said: ‘He’s drinking lightweight beers, that’s the secret.

‘And I tasted it because I thought it was gonna taste, like, naff. Actually it’s quite decent. You could take a tip from him!’

Meanwhile, Simon also spoke about cutting down on alcohol last year, he told Extra: ‘I went to see this guy who’s very well-known. And he said to me, after doing some blood work, “You can’t have red meat, dairy, sugar, bread or gluten.”

‘I’m thinking, “What about alcohol?” And he said, “Maybe not quite as much as you had before.” And I did it and I stuck to it and it’s easy.’

Motivation: In 2019 Simon (pictured July 2017 with son Eric) said: 'I went to see this doctor in London... he said, "You have the worst diet I've ever met from any patient"'

Motivation: In 2019 Simon (pictured July 2017 with son Eric) said: ‘I went to see this doctor in London… he said, “You have the worst diet I’ve ever met from any patient”‘ 

Eric is Simon’s only child and he has credited his son for changing his life for the better, ever since he was born back in 2014.

Speaking on ITV’s Lorraine in September in 2019, Simon explained the impact Eric has had on him and said: ‘I see my life through his eyes now and it’s much more simple and it’s much more fun.

‘When you become a dad, something clicks in you. it’s all about them… You become very protective and importantly, part of the reason I changed everything in my life.’

Fatherhood: Eric is Simon's only child and he has credited his son for changing his life for the better, ever since he was born back in 2014

Fatherhood: Eric is Simon’s only child and he has credited his son for changing his life for the better, ever since he was born back in 2014