Celebrities are rich. That's no secret. What is a secret, though, is how they spend their money. Do they fill their pools with beer and dive in? Do they have huge parties, call the cops, get everyone arrested, and then bail them out just for fun? These are all good questions, but one thing we do know for certain is that famous people love to invest in promising companies. Particularly, these include biotech, cannabis, and alternative protein. Take rock stars Bono and The Edge, for example. They just dumped over $2 million into a Dublin-based startup called Nuritas. The crazy thing is that they are not alone in these types of investments. All over the world, you'll see celebs shelling out cash for their favorite companies. Let's take a look at some now.

CELEBRITIES INVESTING IN BIOTECH, CANNABIS, AND ALTERNATIVE PROTEIN: NAS

It's been a while since Nas wrote a hit record. That's because he's been so busy making deals as a VC. One of the most promising companies Nas is an investor in is Exo Protein. Exo Protein is an alternative protein company that uses insects. It sounds gross, but it's sustainable and healthy. Plus, Nas likes it, so you know it's cool.

CELEBRITIES INVESTING IN BIOTECH, CANNABIS, AND ALTERNATIVE PROTEIN: BILL GATES

Bill Gates got his claim to fame with Microsoft, but now he's a bonafide philanthropist and investor. One of the more interesting projects he pairs himself with is a company called Beyond Meat. This company makes a "meat" that is entirely plant-based and also delicious. Go figure!

CELEBRITIES INVESTING IN BIOTECH, CANNABIS, AND ALTERNATIVE PROTEIN: SNOOP DOGG

Snoop is the second rapper to grace this list, and odds are, he won't be the last. When you think about Snoop Dogg, you usually think of one thing: marijuana. Hence, it's no surprise that Snoop invested $10 million into cannabis startup Eaze.

CELEBRITIES INVESTING IN BIOTECH, CANNABIS, AND ALTERNATIVE PROTEIN: MELINDA GATES

You can't mention Bill Gates without his trusty wife and investing sidekick, Melinda Gates. Together, they form the Melinda and Bill Gates Foundation, and they love biotech. They love it so much that they invested $34.5 million into a crop protection company called AgBiome.

CELEBRITIES INVESTING IN BIOTECH, CANNABIS, AND ALTERNATIVE PROTEIN: WHOOPI GOLDBERG

We all know Snoop loves him some grass, but did you know Whoopi Goldberg does, too? She started her own marijuana business called Whoopi and Maya. Laugh all you want; it's true.

CELEBRITIES INVESTING IN BIOTECH, CANNABIS, AND ALTERNATIVE PROTEIN: ANDREW FERRENCE

In the NHL, you won't find another savvy investor like Andrew Ference. His name is all over the place, but he mostly invests in the data and software industry.

CELEBRITIES INVESTING IN BIOTECH, CANNABIS, AND ALTERNATIVE PROTEIN: THE JONAS BROTHERS

The Jonas Brothers' days of fame are long gone, but they still have money and they want to invest it. That's why they joined in with a group of other celebrities to invest in Ember Technologies. Essentially, this company is famous for making a mug that customizes the temperature of your liquid. It's not too hot, it's not too cold — it's just right.

CELEBRITIES INVESTING IN BIOTECH, CANNABIS, AND ALTERNATIVE PROTEIN: AZIZ ANSARI

If you know anything about Aziz Ansari, you know he loves food. So, it's no surprise that he invested over $7 million into a restaurant called Ando. But he didn't do it all alone.

CELEBRITIES INVESTING IN BIOTECH, CANNABIS, AND ALTERNATIVE PROTEIN: JIMMY FALLON

As host of The Tonight Show, Jimmy Fallon has a lot of famous friends. Aziz Ansari is one of them. That's probably why he joined in on Ansari's investment opportunity with Ando. Together, the two invested $7 million in the restaurant. They'd better make some good food with that money — or at least give Fallon and Aziz some free food every now and then!

CELEBRITIES INVESTING IN BIOTECH, CANNABIS, AND ALTERNATIVE PROTEIN: LEONARDO DICAPRIO

Did you see Leonardo DiCaprio's climate change movie? No? Well, he made one, and it's great. Making movies isn't all Leo is doing to fight climate change, though. He's also invested in a waste technology company called Rubicon. If anyone can save the world, it's Leonardo DiCaprio. Will you join him?