On Tuesday, the 21-year-old made her first-ever appearance on Forbes' Wealthiest Celebrities in America list, landing at No. 5 with a net worth of $900 million. Though Jenner has her hands in everything from reality TV to lucrative endorsement deals, most of her money comes from Kylie Cosmetics—a wildly popular beauty company of which she has 100 percent ownership.
Kylie, who is predicted to become "the youngest self-made billionaire," says platforms like Instagram played a large role in her company's success.
"Social media is an amazing platform," Jenner told Forbes. "I have such easy access to my fans and my customers."
The mother-of-one shares this year's No. 5 slot with JAY-Z, whose net worth grew by $90 million over the last year. Forbes credits the surge to Hov's big business deals with companies like Armand de Brignac champagne and D'Ussé cognac, as well as his stakes in Roc Nation and Tidal.
George Lucas leads the list with $5.4 billion. Steven Spielberg takes the No. 2 position ($3.7 billion); Oprah Winfrey comes in at No. 3 ($2.8 billion); and Michael Jordan follows with $1.7 billion.
Rounding out the top 10 are David Copperfield (No. 7, $875 million), Diddy (No. 8, $825 million), as well as Tiger Woods and James Patterson, who tied at the No. 9 position with $800 million each.
According to Forbes, the 10 wealthiest American celebrities in 2018 have a combined worth of $18.7 billion.