Amazon CEO Jeff Bezos and his wife Mackenzie recently announced their pending divorce after 25 years of marriage. Bezos’ estimated net worth is around $137 billion — and according to the community property laws in their home state of Washington, his soon-to-be ex-wife is legally entitled to half of it.

If the answer is “yes!” then you might be inspired by the following people; they’re the current top five richest in the world.

And all of them are self-made billionaires.

So, just how did they earn their massive wealth? And how much are they worth?

5. Mark Zuckerberg

Net worth: $58.5 billion

Source of wealth: Self-made; Facebook

While a sophomore at Harvard University in 2004, Mark Zuckerberg launched TheFacebook.com – an early version of what everyone knows today as simply, Facebook.

In a recent interview with ESPN E:60, running back Trent Richardson revealed that friends and family spent $1.6 million of his NFL earnings over the course of 10 months in 2015.

Bad investments, poor budgeting, regretful spending choices and surrounding yourself with the wrong people have lead many former NFL players into the hole of financial oblivion. Others, however, made it to the other end of the financial spectrum – making investments or doing deals that made them mega rich.