It appears that he does not, although he has a well-documented history of smoking weed, so perhaps he smokes tobacco in those instances. In my opinion he’s much better off smoking weed than smoking cigarettes, but that’s just me.
The fact is that this young man has his head screwed on too well to be common tobacco addict. He just doesn’t give off that vibe. And if he is a tobacco smoker, well for the sake of his fans he’s keeping it well hidden.