By Sam Shead

Dimitrios Kambouris / Getty

Justin Bieber.

Venture capitalists and corporates aren’t the only ones funding new tech startups as they look to become the next Google or Facebook.

High net worth individuals and angel investors are also ploughing millions of dollars into new ideas in the hope that one day they’ll become billion dollar businesses.

Many of those individuals happen to be famous, and analysts at research firm CB Insights have rounded up the 22 most active celebrity investors for a new list that was published Wednesday.

Approximately half of the individuals on the list hail from the music industry, while others have made a name for themselves in TV and movies, sports, or fashion. Those on the list have backed some big names including the likes of Spotify, Airbnb, Box, and Lyft.

In order to create the list, CB Insights looked at celebrity startup investment data going back to 2007.

22. Snoop Dogg has backed cannabis startups FunkSac and Eaze.

21. “Iron Man” star Robert Downey Jr has put money into subscription box service Loot Crate and Masterclass, a site that offers interactive video courses taught by big names including athletes, actors, and singers.

20. Pop star Justin Bieber has put money into music streaming service Spotify and selfie app Shots.

19. Former Black Eyed Peas member will.i.am has backed everything from tech firm Shellanoo Group to stealth startup Honest Dollar, which was acquired by Goldman Sachs in March.

18. 50 Cent has invested in “enhanced water” brand Glaceau and founded consumer electronics company SMS Audio.

17. Ryan Seacrest, a US radio personality, television host, and producer, has backed mindful