English rocker Ian Brown has warned troubled singer Pete Doherty's his burgeoning career will collapse if he doesn't quit drugs soon.
The former Stone Roses frontman performed with Doherty's band Babyshambles last year and has urged Doherty is get clean because the group will never reach their full potential until he is sober.
Brown says: "Babyshambles are a great rock 'n' roll band. Pete didn't put a foot wrong. He didn't miss a note and the band didn't skip a beat.
"People can say what they like about Pete being a waster, but they put on a great rock 'n' roll show.
"My advice to them is keep off the class-A drugs. I would always encourage Pete to keep off the class-A drugs because it doesn't matter how big you are, they will take you down."