"Drinks unicorn drink once," Perry wrote alongside a close-up of her hyper-glam look, before poking fun at her copy-cat look (and tagging the entire Kardashian and Jenner clan). The singer simply captioned another pic, "Katy Kardashian."
Kim Kardashian and Kylie Jenner definitely took note, and even liked the photo, with Kardashian commenting with several fire emojis.
Perry has long been a fan of the Kardashians. In fact, the "Chained to the Rhythm" singer couldn't stop gushing about the famous family during an interview with ET in 2015 at the Met Gala.
"Listen, Kris Jenner is very important to me," Perry confessed. "That is not sarcastic at all. She has a great sense of humor and she's kind of like the mother of everyone."
"I was thinking the other day, we've all had our own commentary on the Kardashians, but if they hadn't existed, we wouldn't have had the fantastic Bruce Jenner who is just evolving everybody right now with all of his wonderfulness," she observed. "So, the Kardashians in my book are completely valid."