Pete Doherty gets ''enormous anxiety'' before appearing on stage.
The former Libertines singer suffers from crippling stage fright, which he says affects his abilities to perform, but also admits his current band, Babyshambles, have a far from professional outlook.
He said: ''If The Libertines were three reliable, talented musicians and one f**k-up, Babyshambles is like one talented musician ... and the rest of us are f***ed up.''
The singer also admitted his drinking caused ''a few problems'' on the set of his debut film, 'Confession of a Child of the Century', shot in France and featuring him as 19th century Vagabond.
He said: ''I wasn't going to drink coloured water. If I am doing a drunken scene, I am doing a drunken scene. That did cause a few problems. Once I start drinking, I have to carry on.'''
The film's director, Sylvie Verheyde, also had to turn a blind eye to the former Libertines frontman's heroin use.
Peter was urged to go to rehab before shooting, but says he was ''so absorbed in the work, there wasn't a chance.
''I couldn't hide it from [Sylvie]. She didn't really care. It was just a question of how quickly I can find a vein and then let's get on with it.''