Simon Cowell sports an even WHITER smile as he poses for a sweet selfie with co-judge Heidi Klum

He has long been known for his megawatt smile.

Yet Simon Cowell’s gleaming grin looked even brighter on Thursday, after his America’s Got Talent co-judge Heidi Klum added a funky filter to a sweet selfie of the two of them which she posted on her Instagram page.

The music mogul, 59, smiled from ear-to-ear next to the veteran model as they commenced their judging duties on the hit talent show.

The filter added a stylish leaf print headband to their heads, as well as a pair of statement gold drop earrings and the glowing smile.

Simon’s teeth took centre-stage during a 2007 X Factor audition where a 70-year-old auditionee named Emily revealed she wanted to win so she could get dental care.

Saying she wanted Simon’s smile, the whimsical judge said: ‘I can’t help that I’ve got good teeth.’

Ladies in red: Heidi and Alesha donned bold red and white polka dot headbands, while the filter also added a slick of cherry red colour to their lips

Simon, who regularly sports a bright white smile, is enjoying a new lease of life since trimming down, and his new look hasn’t been lost on former colleague Sharon Osbourne.

She told The Sun: ‘The teeth are too white again, he always gets these teeth that are too white and it takes a year or so for the colour to calm down.

‘Otherwise I think he looks great., he’s dropped weight and it’s great for him.

‘Much healthier for him, not that he was big but he just got rid of that tummy and chest.’ 

Heidi also shared funny filter snaps with new addition to the judging team Alesha Dixon and Canadian comedian Howie Mandel.

Heidi and Alesha donned bold red and white polka dot headbands, while the filter also added a slick of cherry red colour to their lips.

Meanwhile, Heidi and Howie donned a pair of glasses and cute teddy bear ears. 

Sweet! Meanwhile, Heidi and Howie donned a pair of glasses and cute teddy bear ears