Outrageous comedian/actor Russell Brand insists young pop stars should be banned from the studio if they haven't experienced hard drugs.
The Forgetting Sarah Marshall star doesn't share his fiancee Katy Perry's love for Justin Bieber and other teen pop sensations and thinks all wannabes should have a rehab history before they embark on a career in music.
He tells Rolling Stone magazine, "The top of the hit parade would look very different if teenyboppers were exposed to heroin. It would weed a lot of them out.
"I don't think Justin Bieber could handle (late Pink Floyd star) Syd Barrett's habit.
"You're just not allowed into the studio until you first have had drug-addiction issues. It separates the men from the boys... Then, perhaps, we would be spared their awful music... It's the law of natural selection."