In honor of Jenner’s 21st birthday, see 21 photos of the star through the years, ahead.

The Evolution of Kendall Jenner

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Kendall Jenner and Kylie Jenner With Their Parents at the World Premiere of The Emperor’s New Groove in Hollywood on December 10, 2000

Ron Galella, Ltd./WireImage

Kendall Jenner and Kylie Jenner With Their Parents on July 4, 2003

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Kylie Jenner, Kim Kardashian, and Kendall Jenner at the Keeping Up With the Kardashians Viewing Party in Agoura Hills, California on October 16, 2007

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Kendall Jenner and Kylie Jenner at the KIIS-FM’s 2008 Wango Tango Concert in Irvine, California on May 10, 2008

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Kendall Jenner, Khloe Kardashian, and Kylie Jenner at the A Time for Heroes Celebrity Carnival in Los Angeles on June 8, 2008

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Kendall Jenner at 102.7 KIIS-FM’s Wango Tango 2009 in Irvine, California on May 9, 2009

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Kendall Jenner at the Kiss & Tell Record Release Party for Selena Gomez and The Scene in Hollywood on September 29, 2009

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Kendall Jenner at the Sk8 For Life Benefit in Los Angeles on May 22, 2010

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Kylie Jenner, Kourtney Kardashian, Kim Kardashian, and Kendall Jenner at the Premiere of The Twilight Saga: Eclipse in Los Angeles on June 24, 2010

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Kim Kardashian, Kourtney Kardashian, Kylie Jenner, and Kendall Jenner at the Nickelodeon Kids' Choice Awards on April 2, 2011

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Kendall Jenner at the Evening Sherri Hill Spring 2012 Fashion Show in New York City on September 14, 2011

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Kendall Jenner and Kylie Jenner at the 2011 Hollywood Style Awards on November 13, 2011

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Kendall Jenner at the Backstage Creations Celebrity Retreat at Teen Choice 2012 on July 22, 2012

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Kendall Jenner at 102.7 KIIS FM’s Wango Tango in Carson, California on May 11, 2013

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Kendall Jenner at the 2013 American Music Awards in Los Angeles on November 24, 2013

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Kendall Jenner at the Charles James: Beyond Fashion Costume Institute Gala at the Metropolitan Museum of Art in New York City on May 5, 2014

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Kendall Jenner

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Kendall Jenner With Gigi Hadid at the Balmain Aftershow Dinner During Paris Fashion Week on March 5, 2015

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Kendall Jenner at the 2015 Victoria’s Secret Fashion Show in New York City on November 10, 2015

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Kendall Jenner at the From The Land Of The Moon (Mal De Pierres) Premiere at the 69th Annual Cannes Film Festival on May 15, 2016

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