Can you believe Kim Kardashian’s little sis is now 16? The Keeping Up With the Kardashian’sstar had such an exciting year from building her modeling career, starting her own fashion line, and becoming romantically involved with Jaden Smith.

Kylie was born August 10 in Calabasas, California, and is the youngest out of sister Kendall Jenner and half sisters Kourtney, Kim, and Khloe Kardashian. With an extensive modeling resume, Kylie has done photo shoots with Teen Vogue, OK! Magazine, and Girlfriend, along with modeling for Avril Lavigne’s collection Abbey Dawn Runway in 2011 New York Fashion Week and the Hello Kitty Launch for Forever 21 in Los Angeles. She has also hosted big Hollywood events such as Glee 3D Concert Movie and the Breaking Dawn Part 1 red carpet event.

This year, Kylie took her fashion interests even further. With older sister, Kendall, the two designed a fashion line for PacSun and a jewelry line at Nordstrom. In an interview with Fashionista, Kyle says of her inspiration: “The Internet, our sisters. … It’s kind of a hard question. Even a lot of things in our closet that we just look at and we’re like, “oh this would be so much cuter if it had this color.” I don’t know where it comes from. We just sit down in a room and pretty much put out all of our ideas and what theme we’re going for and all that.” The two were recently in New York City promoting their fashion line for Pac Sun and were greeted by screaming fans.

In terms of romance this year, Kylie has been cozying up with Will Smith’s son, Jaden Smith. The two have been spotted numerous times together, including at a Kanye West concert and a Justin Bieber concert.

The Kardashian sisters all wished their best to their little sister on her special day:

Kim Kardashian: “Happy Birthday to my baby sis @kyliejenner !!!,” she wrote. “Can’t believe your 16! I love you so much!”

Kendall Jenner:

Image: NBC