Simon Cowell has shared the gruelling secret behind his super slim frame.
The Britain's Got Talent judge, 60, shed a whopping four stone after switching up his lifestyle and taking up a vegan diet.
And to keep himself in shape after his weight loss, Simon has confessed that he does 150 press-ups every single morning.
In BGT spin-off Unseen Bits, Simon said he does a press-up "150 times before I come to work, in about three goes".
Simon recently confessed that he's exercising more than ever now that he's in lockdown with his partner Lauren Silverman and their son Eric, six, during the ongoing coronavirus pandemic.
Simon has lost 60 pounds, just over four stone, thanks to his new diet and exercise regime.
He recently told Extra : "I think I have dropped, since I started this diet a year ago, 60 pounds."
The music mogul said being on lockdown has made sticking to his healthy lifestyle much easier, except for the temptations brought on by Eric.
He said: "I’m doing a bit of cooking. I’m exercising. Funny enough, more during this time as well, sticking to the diet.
"The only difficult thing is when Eric orders a pizza… That’s the number one thing I miss."
Simon also shared his tips on surviving self-isolation.
He said: "Most importantly, occupy your mind. You have to stick to a routine. Fortunately, with things like with Zoom, you stay in touch with the world, keep motivated, come up with ideas... I never get this time, normally."
He added: "I was concerned how [Eric] was going to cope with all of this. He has been absolutely amazing. He is still able to do schoolwork, and now we are camping on the weekends in the garden."
Britain's Got Talent is currently airing in the UK every Saturday night.
The auditions were filmed before the lockdown began and strict social-distancing rules were put in place.
The live shows have been delayed due to the pandemic.
* Britain's Got Talent airs tonight at 7pm on ITV