Kendall Jenner Turns 21! See How Much She's Changed Since 'Keeping Up With the Kardashians' Started

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Happy 21st, Kenny!

Kendall Jenner is officially 21!

It's been nine years since Keeping Up With the Kardashians premiered in 2007, and since then, we've seen Kendall blossom from a fresh-faced, adorable kid into one of the most in-demand models today. While a lot has changed, including her ride-or die friendship with Gigi Hadid and being regularly praised by supermodel Cindy Crawford, , she's still close with her little sister, Kylie Jenner, and the rest of the Kardashian-Jenner family.

WATCH: Kendall Jenner Twerked on Hillary Clinton (aka Katy Perry) at Epic A-List Halloween Party

Not only that, but her style has evolved as well, going from cute, age-appropriate dresses to edgy, rockstar-worthy ensembles. These days, the more cut-outs and tears, the better! (High fashion ones, of course.)

Check how much the reality star has changed since KUWTK's premiere:

2007

Back when leopard print was a Kardashian-Jenner staple and Kendall and Kylie were just two freckle-faced cuties, the pair posed with their older sis, Kim Kardashian, at a KUWTK viewing party.

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2008

Converse chic! The future supermodel had no problem wearing a pair of Chuck Taylors to a charity event. Give her a break! She was only 12.

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PHOTOS: Kendall Jenner Takes Over the Runways


2009

Kenny got slightly more glam in a ruffled white dress with silver heels to attend the ESPYs.

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2010

Teenage stunner! The reality star attended the premiere of Burlesque in an edgy leather minidress, showing off her already killer legs.

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2011

Seeing double! Kendall and Kylie wore matching royal blue dresses to the premiere of Disney’s Prom.

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MORE: Kendall Jenner Gets an Animal-Inspired Inner Lip Tattoo

2012

The future Vogue cover girl got fun and flirty at this charity event, rocking a flared-out beige dress and sky-high copper heels.

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2013

Kendall sizzled on the red carpet at the 2013 American Music Awards in a white cutout number. At the time rumors were swirling about a romance between her and One Directioner Harry Styles.

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2014

Goddess gown! Kendall oozed classic Hollywood glamor at the Harper’s Bazaar Icons event.

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WATCH: Kendall Jenner Scared and Freaking Out Over Her Sleep Paralysis

2015

What an angel! The runway regular made her debut in the Victoria’s Secret Fashion Show to rave reviews. She’s already been asked back for this year.

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2016

Checkerboard chic! After collaborating with PacSun and rocking various designers’ fashions on the runway, Kendall modeled her own designs at the launch of her and Kylie’s signature collection.

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WATCH: Kendall Jenner and Gigi Hadid Will Walk in Victoria's Secret Fashion Show