Have they learnt nothing? Your common or garden pop star is SUPPOSED to take drugs. It's so we common proles can live vicariously through their excess, hubris and stupidity. ...And hopefully they will make some interesting music in the process that sheds light on the human condition blah blah blah.
To quote Bill Hicks....
'You see, I think drugs have done some good things for us. I really do. And if you don't believe drugs have done good things for us, do me a favour. Go home tonight. Take all your albums, all your tapes and all your CDs and burn them. 'Cause you know what, the musicians that made all that great music that's enhanced your lives throughout the years were rrreal f-ing high on drugs. The Beatles were so f-ing high they let Ringo sing a few tunes.'
Then again I wouldn't want to have what Wagner was (allegedly) using. That hair? Erm. No. Best stick to the Horlicks, mate.
Seriously I think you would have to be deluded to think that great art will come from talent show contestants getting well and truly off their gourd. Perhaps the MInistry of Pop should introduce a Drugs Proficiency Test. If you can generate a Sonic Cathedral of Ecstatic Noise That, Yay, Speaks Verily of The Gods after a quick puff on the wacky backy then go ahead, make friends in the Space Cadets Union. If you make inane self-indulgent dribblings that go on and on and on, you should be on caffeine free diet cola stat.