We can take a pretty educated guess at how some celebrities will spending this weekend.
Tomorrow is 4/20, otherwise known as the international day to smoke up. And in the land of Hollywood, where medical marijuana cards are as commonplace as drivers licenses, it's safe to say that plenty of celebrities will be, umm, "celebrating." Not only that, but these A-listers are pretty open about their love of Mary Jane, going on the record in interviews as avid pot fiends.
Check out our roundup of the 20 "greenest" celebs who will definitely be celebrating 4/20!