Kelly Clarkson.Photo:Nathan Congleton/NBC via Getty

Kelly Clarkson

Nathan Congleton/NBC via Getty

Kelly Clarksononce ripped her pants while filming her 2010 music video, “Since U Been Gone."

The singer, 41, revealed the wardrobe mishap happened while on set in recorded outtakes from Tuesday’s episode ofThe Kelly Clarkson Show.

“I basically feel like I have one big Spanx on from the ankle to the neck,” theReal Housewives of Beverly Hillsstar said while seated on the sound stage. “And I haven’t sat in them until I got here. So if you hear a loud noise…”

“Like it ripped,” added Clarkson as she motioned the act. Explaining how she would react if that were to happen, Richards continued, “I will cover myself with a pillow.”

“That happened to me on a music video,” Clarkson revealed. “The director was like, ‘Can you go down?’ I was in really tight leather pants in the ‘Since U Been Gone’ video and he was like, ‘Go down and pop back up’ and I was like, ‘OK, cool.' ”

“And I went down and just, ‘Whoop!'” she imitated the sound of her bottoms splitting. “And I was commando,” she added, which prompted the audience to burst into laughter.

“Do we have this on tape?” Richards, 54, joked. Clarkson continued, “The drummer, I was like, ‘Oh s— that’s a lot of moon, man. I’m sorry.”

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Ahead of the Oct. 31 episode, PEOPLE got anexclusive sneak peekat the talk show host’s costume as a blood-sucking vampire.

For the show, Clarkson wore a form-fitting long-sleeve black dress with a matching choker. She also painted her face to look ghastly pale with painted blood dripping down from her smokey eyes.

Fitting for her character, Clarkson sang a cover ofOlivia Rodrigo’s hit song “Vampire.” “I love Halloween so much,” Clarkson said after her performance.

She went on to explain her band’s coordinated costumes. “We are all different versions of vampires. I am Rock and Roll Vampire. That’s what I’m claiming, ‘cause we just went with it!”

“We should all go out after this, just to freak people out,” she joked.

source: people.com