Forbes has once again released its ranking of the world's billionaires — and there's something insanely intriguing about the youngest people to make the list.
The three youngest billionaires are all Norwegian.
The youngest billionaire in the world is currently just 21. Alexandra Andresen and her sister Katharina, 22, each have an estimated wealth of $1.4 billion (£1 billion).
Keep scrolling to meet the five youngest billionaires in the world in 2018, according to Forbes, ranked by age from oldest to youngest.