Heidi Klum Flashes Her Underwear During ‘The Ellen DeGeneres Show’ — on Purpose!

Heidi's hiney! Heidi Klum flashed her underwear — to prove that she was wearing the undergarment — during an appearance to promote her lingerie line, Heidi Klum Intimates, on The Ellen DeGeneres Show Friday, February 5.

The supermodel, 42, wore a very short black dress for the interview, which host Ellen DeGeneres was quick to call out.

"Are you peeking? Did you test that dress out before you came out? Did you sit in it before you came out here?" the comedian, 58, teased.

"I did. Why?" Klum replied.

DeGeneres quipped, "It's short. That's all I'm saying."

Heidi Klum appears on 'The Ellen DeGeneres Show.' Michael Rozman / Warner Bros.

The America's Got Talent judge agreed, but luckily she had a pair of tight undies backstage. To show that she wasn't lying, she stood up and lifted up her outfit.

"Do you guys want to see it?" Klum asked the audience. "I was like, 'This dress is a little too short.' But thankfully, in your goodie bag there were your shorts."

"It looks good with that dress," DeGeneres mused. "That's the kind of underwear I suggest you wear under a dress like that."

Last year, Klum also showed off her derriere with a "naughty spoon" photo. She pulled up her jean shorts and put a wooden spoon on her bum.

Watch the funny exchange in the video above!

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