Alice Cooper came into The Sound HQ ahead of his Auckland show on Friday.
When he was younger he came close to dying after living a pretty rough rockstar lifestyle, like many others.
"The doctor said you've got about 2 weeks before you join your buddies. You're Hollywood vampires."
He said it was also important to remember to leave your character on stage.
"You leave Alice on stage, you don't ever take him off stage,"
That's what killed Jim Morrison and Jimi Hendrix. Those guys tried to be their characters off stage