Photo: David Livingston/Getty

Holly Marie Combs attends the premiere of Focus Features' “Kubo and the Two Strings” at AMC Universal City Walk on August 14, 2016 in Universal City, California.

Holly Marie Combstook a major stand while working onCharmed.

During the show’s90s Conpanel on Saturday, Combs revealed she often didn’t wear a bra on set — but there’s a reason for that.

“They tried to be gentle about it, but … the messages would come down through the ranks. And then there would be, you know, that unfortunate person who had to deliver the message to you,” Combs, 48, recalled. “Usually, it was down to wardrobe. They were, like, setting these different bras in my dressing room and I was like, ‘Those belong to somebody else.’ "

“They wanted me to wear a big, padded push-up bra and I was like, ‘no,’ hence why there are so many scenes of me not wearing a bra whatsoever,” she continued. “Which I apologize for but at the moment, at the time, it was very important.”

The panel’s host,Christy Carlson Romano, asked whether they provided an “alternative option” for her, but Combs replied: “No, nothing.”

Comparing herself to her costarsAlyssa MilanoandRose McGowan, Combs explained that “their boobs was [sic] enough” and “not everybody needed to have” a push-up bra.

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Holly Marie Combs from the tv show “Charmed” 1999

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Elsewhere in Saturday’s panel, Combs opened up about her frustrations with her character Piper.

Combs also provided a hilarious tidbit about fellow series alumShannen Doherty, who only appeared on the first three seasons before McGowan, 48, came on board. According to Combs, the 50-year-oldBeverly Hills, 90210alum was the biggest “pranker” on set.

“She did bad things and she messed with the wrong department. She messed with the transpo department,” Combs revealed.

“They actually put a fake winning lotto ticket in her trailer. Yeah, they had a war,” she said, explaining how Doherty often bought lottery tickets. “They, like, shook her trailer and made her think it was an earthquake. It got ugly. She did, like, bad toilet things, she did, like, silly spray things in cars and she took a golf cart many, many, many, many times and she would just leave.”

source: people.com