The daughter of the late King of Pop, Michael Jackson, made the revelation during a Get Ready Together video with Vogue alongside her brother, Prince Jackson.
In the clip, the duo are seen getting hair and make-up done, as they get ready to attend the Ryan Gordy Foundation 60 Years of Motown celebration at the Waldorf Astoria in Beverly Hills, California last week.
"This is my second dress and I feel like a princess," she said in the clip, shared on Instagram. "I never actually went to prom. I skipped it to go see Metallica, so this feels nice. I would want my prom dress to look like this."
Her sibling also approved of the look, adding, "Tinker Belly! Very nice, very nice - pretty."
For the event, the two coordinated their looks, with Paris donning a white gown embroidered with silver gems and Prince opting for a black tuxedo bedazzled with similar jewels.
Honouring her brother and "best friend" in the caption of the clip, the star added, "thank you @voguemagazine, had such a lovely time."