4. Brad Pitt

While some celebs like to have a smoke every now and then, there are certain people among them who not only smoke, but have been known to take smoking from tobacco to weed somewhere in their life.

One of those celebs is Brad Pitt. Although he’s a very talented actor and knows how to hide his problems well, Pitt has been known to engage into pot smoking in the 90’s.

“I was hiding out from the celebrity thing. I was smoking way too much dope. I was sitting on the couch just turning into a doughnut,” admitted the actor in an interview.