The Kylie Jenner 10-Year Challenge

As Kylie Jenner was only nine years old when Keeping Up With the Kardashians premiered in 2007, she's inarguably the family member who has changed the most over the years. The now-21-year-old star found her true self through her interest in makeup, grew an insane fan-base over social media, casually had a child without telling anyone, and started an empire in Kylie Cosmetics, which is now worth about $800 million.

And apart from her personal and professional feats, Kylie has also changed her appearance over the years. It all started as a teenager, when she would experiment with makeup and hair colors. She famously had blue hair during Kim Kardashian's wedding, something her big sister was not happy about. And in 2015, Ky finally admitted she had decided to get lip fillers.

With the '10-Year Challenge' trending on social media currently, we've decided to take a stroll down memory lane to go through the past decade with Kylie. Below are the best looks from the makeup mogul from 2009 to 2019.