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.
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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Getty Caption: AGOURA HILLS, CA - OCTOBER 16: Kylie Jenner, Kim Kardashian and Kendall Jenner pose for a photo at the 'Keeping Up With the Kardashians' viewing party at Chapter 8 Restaurant on October 16, 2007 in Agoura Hills, California.
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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GETTY DETAILS: Kendall Jenner attends the Matrix at A Time for Heroes Celebrity Carnival Benefiting the Elizabeth Glaser Pediatric AIDS Foundation on June 8, 2008 at the Wadsworth Theater in Los Angeles
2009
Kenny got slightly more glam in a ruffled white dress with silver heels to attend the ESPYs.
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LOS ANGELES, CA - JULY 15: Kendall Jenner arrives at the 2009 ESPY Awards held at Nokia Theatre LA Live on July 15, 2009 in Los Angeles, California. The 17th annual ESPYs will air on Sunday, July 19 at 9PM ET on ESPN. -- Note her nails are age-appropriate varying rainbow hues
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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LOS ANGELES, CA - NOVEMBER 15: TV personality Kendall Jenner arrives at the premiere of Screen Gems' 'Burlesque' at Grauman's Chinese Theater on November 15, 2010 in Los Angeles, California.
2011
Seeing double! Kendall and Kylie wore matching royal blue dresses to the premiere of Disney's Prom.
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LOS ANGELES, CA - APRIL 21: TV personalities Kendall Jenner (L) and Kylie Jenner arrive at the premiere of Walt Disney Pictures' 'Prom' at the El Capitan Theater on April 21, 2011 in Los Angeles, California. -- They were straight up twinning in royal blue
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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CENTURY CITY, CA - MAY 18: TV personality Kendall Jenner arrives at the 19th Annual Race to Erase MS held at the Hyatt Regency Century Plaza on May 18, 2012 in Century City, California.
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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LOS ANGELES, CA - NOVEMBER 24: Model Kendall Jenner attends the 2013 American Music Awards at Nokia Theatre L.A. Live on November 24, 2013 in Los Angeles, California.
2014
Goddess gown! Kendall oozed classic Hollywood glamor at the Harper's Bazaar Icons event.
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NEW YORK, NY - SEPTEMBER 05: Kendall Jenner attends Moet & Chandon and Belvedere Vodka Toast to Harper's Bazaar Icons at The Plaza Hotel on September 5, 2014 in New York City.
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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NEW YORK, NY - NOVEMBER 10: Model Kendall Jenner from California walks the runway during the 2015 Victoria's Secret Fashion Show at Lexington Avenue Armory on November 10, 2015 in New York City. -- this was her VS Runway debut
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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LOS ANGELES, CALIFORNIA - MARCH 24: Kendall and Kylie Jenner celebrate Kendall + Kylie Collection at Nordstrom private luncheon at Chateau Marmont on March 24, 2016 in Los Angeles, California.