The heiress shares with ET why she was twinning with the reality star.
Paris Hilton was just as shocked as her fans to see herself transform into Kim Kardashian West.
Last week, the 36-year-old heiress nearly broke the internet when she posted a photo of her channeling the 37-year-old reality star's style in promotion of Kanye West's Yeezy Season 6 clothing line.
"They called me and said that Kanye wanted me to be a part of the the Yeezy campaign and then they came and got me ready," Paris recalled to ET's Keltie Knight while at the Rachel Zoe Fall 2018 fashion show and Spring 2018 Box of Style celebration in West Hollywood, California, at the Jeremy Hotel. "I looked in the mirror and I'm like, 'Oh my god! I look like a Kim clone!'"
The Simple Life star added that it was a "really cool" experience. "I thought it was awesome that there were so many girls that did it," she said, noting that the brand enlisted several women to channel Kim. "I love the line, it's very sexy."
As for the rumors that Paris and Kim are frenemies, she insisted, "We've known each other since we were little girls. It was a fun thing to do."
The Rachel Zoe event was also attended by Kim's mother, Kris Jenner, and guests enjoyed Belvedere vodka cocktails while learning about Box of Style, a luxury subscription service that is curated by Zoe.
Paris recently announced her engagement to actor Chris Zylka, and was appropriately dressed for Monday's big soiree in a white Rachel Zoe dress that she paired with a heart-shaped Sara Battaglia purse with the word "Taken" printed on it.
"I'm getting ready to start planning the wedding and picking out my dress, so I'm in bride mode and rocking white," she said of her style.
Paris added that her mother, Kathy Hilton, is in on all the planning. "My mom is helping me a lot. Nobody knows how to decorate like her. She has such amazing taste," she mused. "She knows how to throw an incredible event. So I'm excited to start planning soon."
Here's another ET exclusive with the bride-to-be:
Paris Hilton and Chris Zylka Talk Wedding Plans: ‘We Want to Do It as Soon as Possible’ (Exclusive)