Simon Cowell looked almost unrecognisable when he showcased his svelte figure and youthful glow on the America’s Got Talent quarter-finals red carpet last night.

The 59-year-old showed off his dazzling white smile and slimmer physique at the star studded event, looking years younger.

The X-Factor boss went on a health overhaul after he passed out back due to low blood pressure back in 2017.

Since his big health scare, the music mogul has made drastic changes to his diet and lifestyle following advice from medical experts.

READ MORE CELEBRITY NEWS

“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,” he told Extra TV

The dad of one, who reportedly shed a whopping 20lbs, went on to claim that he was following the diet of his 5-year-old son, Eric.

MORE: Fans notice THIS about Simon Cowell as he reunites with BGT co-stars Amanda and Piers

Although Simon hasn’t cut alcohol out of his diet, he joked, “Apart from ice cream, [Eric] actually likes water, eats all his raw vegetable. I’m on the Eric Cowell diet.”

Commenting on the close shave he had with his health, Simon admitted that his little boy, who he shares with wife Lauren Silverman, makes him realise he needs to take better care of himself.

He told The Sun, “It was a huge shock. They think I fainted because I had low blood pressure and so I have got to really take good care of myself to sort that out.

“It could have been a lot worse. I must say, everyone at the hospital were incredible. I’m truly grateful.”