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Why Heidi Klum Says It's "Incredible" Her Son is Now Taller Than Her at 6'3

The America's Got Talent Judge celebrates her 18-year-old son's towering height.

By Tara Bennett

It's been a busy week for America's Got Talent Judge Heidi Klum with the live show episodes now airing weekly on Tuesday and Wednesday nights — plus her second oldest child, Henry, turning a milestone 18 years old on September 12. 

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On the Tuesday night live show red carpet after the show, Klum acknowledged to NBC Insider the post she made the day before on Instagram about his birthday with a proud mom smile. 

"I mean, he's 18 now and I posted a photo of him where he was, I think, maybe 3 or 4 days old," she said. "We had just brought him home. I mean, he was like a tiny little thing." 

She then added with her trademark humor, "I mean, he wasn't because my kids were all quite big at birth, but when I look at him now he's six foot three! Now I look like the tiny thing next to him," she laughed. "It's incredible."

Heidi Klum on Her Kids

Heidi Klum on the red carpet for America's Got Talent Season 18 Live show

It's well known that Klum is a doting mom to her kids, Leni, 19, Henry, 18, Johan, 16, and Lou, 13.

RELATED: Why AGT Judge Heidi Klum Will Never Forget Plane Crash Survivor Kechi Okwuchi

On September 4, she posted a photo on Instagram of her heading to the Beyoncé concert in Los Angeles with two of her kids, where her height disparity with Henry was really on display.

And then she posted an after-concert concert cuddle with Henry as they processed the magic that is Queen B.

In a 2011 interview with Good Housekeeping, Klum opened up about the hard work that comes with being a mother. 

“Keeping it all together as a modern woman means multitasking, especially when you work,” she told the outlet. “I think you always need to try your best, but at the same time, you can only do what you can do, and you don’t need to beat yourself up about it. I’m not white-picket-fence perfect.”

Klum’s eldest mini-me is up-and-coming model, Leni Klum. Born in 2004, Leni is the biological daughter of Italian businessman Flavio Briatore, though Briatore and Klum parted ways shortly before Leni’s birth, according to PEOPLE.

Shortly after Leni was born, Klum entered a relationship with British musician Seal (whose real name is Seal Henry Olusegun Olumide Adeola Samuel). The pair married in 2005, four years before Seal adopted Leni as his own.

Klum and Seal had three more children: Henry Günther Ademola Dashtu Samuel, Johan Riley Fyodor Taiwo Samuel, and Lou Sulola Samuel.

The two ultimately divorced, with Klum remarrying  Tokio Hotel guitarist Tom Kaulitz in 2019. Kaulitz had Klum's children help him propose, and Klum later told told US Weekly in 2022 that he makes an “amazing” stepdad.

“I’m sure it’s not easy to step into an immediate family, having all of a sudden teenagers,” said Klum. “They were easier when they were younger, for sure. Every age comes with its challenges.”

And as Klum pointed out, height is definitely coming with age for these children!