Rolling Stones guitarist Keith Richards has advised young people to "lay off the dope" in an interview with monthly magazine Uncut.
Keith Richards revealed he does not listen to contemporary music
The 64-year-old, who famously claimed to have snorted his father's ashes - but later denied it, revealed what his message would be to anyone using drugs.
"Give it up, it ain't really worth it. I know the fascination, but it ain't worth it," he said.
He also branded bandmate Sir Mick Jagger a "power freak".
"Mick's a maniac. He can't get up in the morning without knowing immediately who he's going to call," he said.
"Meanwhile, I just go 'Thank God I'm awake' and wait for three or four hours before I do anything.
"He is a power freak and there's nothing we can do about it. I don't want to do anything about it. It doesn't make any difference to what we do," he added.
When asked about Jagger's on stage persona he said: "Excuse me while I laugh. He's a bit vain, let's put it like that."
"We want a vain bloke up there, don't we? Meanwhile, the band can go to work. Vanity will not carry a band. But a band can carry vanity."
The performer, who is currently promoting Shine A Light, a Martin Scorsese documentary about the Stones, also revealed he does not listen to contemporary music and thinks CDs sound "tinny".