kaia gerber
Photo: Getty

There’s big hair, then there’s the hair at Valentino’s latest couture show. Seven models— including Kaia Gerber—walked the Parisian runway wearing sky-high and ultra-thick hair crafted and shaped by the legendary hairstylist Guido Palau and colorist Josh Wood for Redken. Needless to say the entire state of Texas is shook.

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Gerber took to Instagram Stories to thank Palau, writing “this hair moment was everything and more.” The dramatic hair was also a hit on social media, where runway hair trends don’t always make a splash unless they’re controversial.

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Wood shared BTS clips of the work that went into creating the giant hair looks. It took 50 wigs, a flight from New York to Paris, 250 color processes, 150 hours of prep, and 11 team members to craft the extensions on the seven models (the others wore low ponytails or adorned caps). “The big hair was inspired by Pierpaolo Piccioli, he wanted to have some extravagance in the hair and we were looking at old ’60s Diana Vreeland Harper’s Bazaar and Avedon shoots,” says Palau. “These women who had these glorious kind of dream hair. They wanted a fantasy about hair that women dream about. It was couture hair.” Palau and his team used Redken Guts to prep then dryed the hair, fastened six hair pieces on each girl, then smoothed it with Redken Shine Flash and Redken Forceful 23 hairspray.

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Massive hair is having a comeback on the fall 2018-2019 couture runways. We saw a voluminous faux bob at Giambattista Valli, as well as a teased pompadour at Ralph & Russo. At the Fendi couture show, hairstylist Sam McKnight whipped up retro updos. And at the Chanel show, he upgraded otherwise sleek ponytails with a Rockabilly twist pinned right on top of the head. Basically, if you’re going to buy one hair styler this fall—make it hairspray.

This article originally appeared on Harper’s BAZAAR US.