If Justin Bieber Does Smoke Pot, Here Are 17 Celebs He Could Blaze With! (PHOTOS)

On a more sobering note, Glee star Cory Monteith (Finn Hudson) struggled with drug addiction in his past. He told Parade that back in those days he did “anything and everything, as much as possible.” Fortunately, Cory got the help he needed. “I’m lucky on so many counts. I’m lucky to be alive.”