Shirtless Simon Cowell, 66, shows off his toned body after breaking down intense diet

Simon Cowell flaunted his toned figure in blue and white swim trunks after revealing his strict daily diet.

The “American Idol” alum, 66, took to Instagram Sunday to share a poolside video of himself wishing his followers a “Happy Christmas” while holding his Yorkshire Terriers, Squiddly and Diddly.

His pups barked loudly in his arms as he urged them to wish fans a warm holiday greeting.

“That’s ‘Happy Christmas’ in dog language,” Cowell translated, with a smirk.

He accessorized his laid-back look with a pair of aviator sunglasses.

Several fans gushed over the TV personality, with one commenting, “Your laugh is infectious! It’s wonderful to see how happy you are.”

“Men who love dogs 👌,” another added.

Cowell, meanwhile, recently opened up about the diet he adopted since the 2020 bike accident that left him with a broken back.

In his newly released series, “The Next Act,” he is seen eating a half a crumpet for lunch while his fiancée, Lauren Silverman, eats a salad.

“This is how differently we eat,” the “X-Factor” alum said. “I have to eat half of this now and the other half for dinner.”

Cowell recently told the US Sun that he drinks a green protein fruit smoothie, plus “porridge and tea” for breakfast every day after breaking a 17-hour fast.

“And I cut out sugar, dairy, red meat, gluten,” he added. “I had the diet of a schoolboy, and was told by a dietician it was the worst diet he’d ever seen.”

Cowell also told the outlet that he indulges in four 90-calorie beers per day, but splits them all in half to “make it a shandy.”

The businessman is nterested in taking on a natural approach to his health, stating that he has never been interested in taking a popular weight-loss drug to shed pounds.

As for his workout regimen, he performs around 300 to 600 pushups a day with the intention of eventually reaching 1,000.