The rapper Snoop Dogg tweeted: "We just legalized marijuana in Cali. #smokeweedeveryday."
Director Morgan Spurlock tweeted: "America -- look at this way ... no matter who wins, at least we can all go to California to smoke weed together."
Real Housewives of Beverly Hills star, Lisa Rinna tweeted: "I'm going to find the gophers and smoke a lot of pot and go into the Xanax Smoothie food truck business."
Zach Braff poked fun at the legalization with a funny gif: "California legalized marijuana for recreational purposes today."
And Tommy Chong, of the comedy duo Cheech and Chong, celebrated the new legislation by posting a picture in front of a large amount of weed.
California now joins the District of Columbia, Colorado, Washington, Alaska and Oregon in legalizing recreational marijuana use.