Kylie Jenner becomes world's youngest billionaire at 21

Kylie Jenner is officially the world's youngest billionaire, according to
Forbes magazine.

The 21-year-old cosmetics mogul broke the record previously held by Facebook co-founder and CEO Mark Zuckerberg , who in 2007 reached billionaire status at just 23.

Last year, the finance publication placed Jenner as the 27th richest, self-made woman in the US, with an estimated fortune of US$900 million.

Also making Forbes' 2018 The Richest People in the World List is 28-year-old Snapchat founder (and Miranda Kerr 's husband) Evan Spiegel , who's worth US$2.1 million. Meanwhile, 55-year-old Amazon boss Jeff Bezos topped the list as the world's richest person for the second year in a row, with his fortune growing from US$19 billion in 2018 to a staggering US$131 billion this year.