Kylie Jenner Styles a Denim Skirt as a Mini Dress

In the words of Hilary Duff in that one anti-bullying PSA from 2008, "That's so girl wearing a skirt as a top." This past weekend, that girl was Kylie Jenner , and she wore a denim skirt as a mini dress.

Yesterday, Jenner shared a video chronicling her sister Khloe Kardashian's 40th birthday bash. In it, the star parties alongside her friends and family—riding a mechanical bull, dancing in a bouncy castle, screaming along to Snoop Dogg's performance, guzzling down her new canned vodka soda, Sprinter , chomping on In N' Out burgers—all while wearing a denim skirt as a mini dress.

The party was Western-themed and Dollywood-inspired with a strict denim and diamonds dress code. Jenner focused on the denim detail in what looked like a cross between a jean midi skirt and a strapless tube dress. It remains unclear whether she actually repurposed a skirt or the garment was sold as a dress. Either way, the item featured a button closure, a zipper fly, a front seam, belt loops, and pockets.

Jenner completed the look with a pair of slouchy, dark denim pointed-toe stiletto boots. The socialite-slash-business-owner kept her accessories relatively simple with delicate gold chain bracelets and a few chunky diamond rings. The outfit was true to Jenner's current style, which mainly consists of short dresses , form-fitting silhouettes , and basics with a twist .

Meanwhile, the rest of the Kardashian-Jenner family ponied up in jewels and jeans. Khloe wore a diamond-encrusted corset top, matching denim chaps, a cowboy hat, and an assortment of diamonds around her neck. Kris Jenner stayed true to her mom-ager brand in a denim blazer and huge diamond statement necklaces.

Kim K . was dressed in a denim bustier and bedazzled light-wash, lace-up jeans. Kourtney wore an oversized jean jacket, a diamond nameplate necklace that read "Mrs. Barker," and her hair gelled back and styled like a messy mullet. Khloe was certainly on-trend with her b-day theme, as Canadian tuxedos continue to take over runways and celebrities' closets. In fact, Beyoncé wore an outfit just like Khloe's birthday suit a few months ago, denim cowboy hat and all.

Scroll down to shop for denim skirts, denim dresses, and denim skirt dresses inspired by the entire family's denim-on-denim looks.

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