Heidi Klum Strips Down on Hot Ones and Dives Into Saucy Gossip About the $12.5M Bra She Once Wore

Heidi Klum wasn't afraid to bare it all during her Hot Ones interview.

The 51-year-old supermodel appeared on the Thursday, June 20 episode of Sean Evans' YouTube series in which guests eat chicken wings with progressively spicier sauces while answering questions about their life and career.

When chugging buttermilk wasn't enough to beat the spice-induced heat, Klum spontaneously ripped open the snaps of her denim shirt, revealing a red push-up bra.

"I'm getting hot," she said.

A few moments later, she removed her shirt entirely, letting it fall behind her on her chair.

"My mic is in my crotch, is that a slight problem?" she asked.

"It's all right, we've got a boom [mic]. We got a boom. Stu, best sound guy in the biz. Don't worry, we still got your sound," Evans replied.

Earlier in the interview, before the clothes started coming off, Evans asked the former Project Runway host about the most expensive outfit she's ever worn.

The PEOPLE Puzzler crossword is here! How quickly can you solve it? Play now!

"12.5 million bra and $740,000 panty to match — you gotta have those matching panties — for Victoria's Secret," Klum shared. "It was all encrusted with diamonds and rubies and whatnot. I think I got in the Guinness Book of World Records by wearing the most expensive [lingerie]."

The lingerie in question was worn by Klum on the runway at the 2003 Victoria's Secret Fashion Show. The glittering ensemble also featured a fur shawl, which complemented the red accents in the two-piece look.

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories.

In honor of her daughter Leni's 17th birthday in 2021, Klum shared that she was pregnant with Leni on the 2003 catwalk, "I am not alone walking down that catwalk here," she wrote on Instagram alongside a video her her strutting down the runway.

"If I look close enough then I can see you bumping right along at 4 months @LeniKlum," she added.

The America's Got Talent judge ended her post by writing, "I loved you before you were born, and I will love you long after I close my eyes forever. ❤️❤️❤️."

Keni was born in May 2004 following Klum's split from Italian businessman Flavio Briatore. In December 2009, Leni was adopted by Klum's now-ex-husband Seal. Klum married Tokio Hotel musician Tom Kaulitz in July 2019.