Leslie Jones absolutely slayed the red carpet at the Hollywood premiere of Ghostbusters on Saturday night, all thanks to a Twitter-inspired team-up with Project Runway winner Christian Siriano.

"I went in and I told them what I wanted and we just made it," Jones told ET of the collaboration with Siriano, who reached out to the Saturday Night Live star on Twitter after she posted that no designers had volunteered to dress her for the premiere. "He knew what he wanted to do with me. I knew I wanted a slit. I knew I wanted to look sexy."

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The 48-year-old actress and comedian told ET's Kevin Frazier that walking the red carpet in her custom creation felt "like a dream."

"This doesn't feel like this is happening," she added. "I'm just sitting here going like, 'Man, this is crazy!'"

Jones' Ghostbusters co-stars couldn't get enough of her look, gushing over the SNL star in their individual interviews.

"Leslie Jones, she's changed my life and I think she's changed the lives of everyone who's ever laid eyes on her," said Kate McKinnon, who also stars alongside Jones on the NBC sketch show. "She's so stunning, I can't even take it."

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Kristen Wiig, who also looked stunning in a pink Jenny Packham dress, agreed with McKinnon, calling Jones' premiere gown "amazing," while Melissa McCarthy, who collaborated with designer Daniela Kurrle on her vintage yellow premiere dress, showered the look with praise.

"Don't mess with Leslie Jones. She's untouchable!" McCarthy said.

"It was like the heavens opened up," Ghostbusters director Paul Feig agreed. "They dropped Leslie Jones out -- her in this amazing dress."

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"I'm so appreciative of people dressing Leslie," he continued. "She's beautiful, a real gorgeous woman, and you see how spectacular she looks."

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For Jones, the whole ordeal came down to one important message about body positivity.

"You can look good. Don't let nobody tell you you can't look good because of your size... or what size your feet is," she reiterated. "You can look good. Someone can dress you. It takes a real designer to design for a real woman."

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