Kylie Jenner – Net worth: $50 million
Keeping Up with the Kardashians was initially responsible for sending Kylie Jenner – model, entrepreneur, and socialite – to the top in her field. She starred in the show starting at the young age of nine. Of course, Jenner also released her own brand of cosmetics. This, combined with her strong social media presence, led her to become a very successful businesswoman. Her entrepreneurial endeavors extend beyond only cosmetics. She has also created clothing lines, and even funded the development of an app. Jenner’s app was the top-rated app on the iTunes App Store for some time. Jenner’s business sense landed her on the Forbes Celebrity 100 list, making her the youngest person to ever be featured on this list at the age of 19. Today, she has amassed an incredible fortune at a very young age. Her net worth is more than four times as large as her next nearest competitor, wrapping up our list of the 21 Richest Celebrities Under 21.