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The second inauguration of President Donald Trump earlier this year was a blunt reminder - if needed - of the way money and power are closely entwined.
Elon Musk may have been the highest profile billionaire to offer Trump his support, but sitting next to him at the ceremony were tech tycoons Mark Zuckerberg and Jeff Bezos.
They are three of the richest men in the world, who see their fortunes fluctuate by billions every 24 hours.
The mega-rich are less rare than they used to be, with Forbes magazine revealing last year that there were a record 2,781 billionaires in the world.
Famous faces making their first appearance in the list include fashion designer Christian Louboutin ($1.2 billion), NBA legend Magic Johnson ($1.2 billon), TV producer Dick Wolf ($1.2 billion) and pop star Taylor Swift ($1.1 billion).
They all have some way to go to catch up with the 13 richest people in the world in May 2025.
Here they are, and how much they are worth, according to the experts at Forbes.
9. Sergey Brin
Fellow Google founder Sergey Brin is pipped by his colleague when it comes to bank balances, with an estimated worth of $127.5 billion. Last year he wasn't even in the top 10 though - so he's doing alright. | Getty Images for Breakthrough Pr
10. Amancio Ortega
A less well-known billionaire, Amancio Ortega is a Spanish businessman who specialises in so-called fast fashion. He founded the fashion group, which includes chainstore Zara. He has a fortune of around $122.2 billion at the moment. | AFP via Getty Images
11. Rob Walton and family
Heir to the Walmart empire Rob Walton is the eldest son of the founder of the world's largest retail chain, Sam Walton, and served as company chairman from 1992 to 2015. The owner of the Denver Broncos is worth an estimated $114.9 billion. | Getty Images
12. Jim Walton and family
Coming just behind his big brother is fellow Walmart heir Jim Walton and his fortune of around $113.6 billion. | Getty Images