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Actors, athletes, and musicians can get paid a lot of money. And while it’s easy to buy a couple of extra yachts or a crystal-studded bathtub, the smartest ones know when to invest.

Often, they’ll invest in a business they already know. Brad Pitt founded Plan B productions, which produced the Oscar-winning “12 Years a Slave” and “Moonlight.” But they can also invest in unrelated companies, and use their fame to get publicity and open doors in the business.

Sometimes, the investments are a massive failure, like Ja Rule’s Fyre Festival. Other times, they can be huge successes, like the projects on this list.

Here are 19 celebrities who’ve made tons of money outside of their usual line of work.

SEE ALSO: The 17 most ridiculous celebrity purchases of all time

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Ashton Kutcher was an early investor in Uber, Airbnb, and Spotify.

Aside from his romantic comedies and stint in “Two and a Half Men,” Ashton Kutcher has made millions of dollars from his venture capital fund, A-Grade Investments. Kutcher co-founded the firm in 2010. By 2013, it was valued at over $100 million.

Magic Johnson has a sprawling portfolio of investments in different franchises.

The retired basketball player owns Magic Johnson Enterprises, a massive investment company. It has stakes in a bunch of different companies, but he mainly uses it to invest in franchises. At different times, Magic Johnson Enterprises owned shares in movie theaters, gyms, and hundreds of  T.G.I. Friday’s, Burger King, and Starbucks locations. He also became a co-owner of the LA Dodgers, for which he paid $50 million.

Gwyneth Paltrow’s lifestyle brand, Goop, raised millions in venture capital.

Goop is frequently mocked online for selling obscenely expensive knicknacks, but Paltrow seems to have convinced investors that it’s a promising business. She’s raised $20 million in venture capital funding since she began Goop as simply a personal newsletter in 2008, according to CNBC.

It’s not clear, though, if Goop is profitable yet. In 2014, leaked documents seemed to show that the company was $1.2 million in debt. But it’s e-commerce business seems to be growing steadily, according to Racked.

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