At the age of 21, Kylie Jenner became the youngest self-made billionaire in the world. Like last year, this year Kylie holds the throne, according to Forbes. She built her own business, Kylie Cosmetics, and did not inherit it from her family.

In November 2019, she sold 51% of her shares to beauty giant Coty Inc. for $ 600 million. However, it continues to own 49% of the shares. Kylie's business is valued at $ 1.2 billion and she is only 22 years old.