He'd been given Xanax to help him deal with anxiety issues, but took the pills for much longer than was safe. As a result he had to go to rehab before starting work on Korn's first record with Brian 'Head' Welch in over eight years.

Davis says: "I was not doing it recreationally � I was doing it because I have anxiety problems. My doctor said, 'You should only be on this stuff for a month or so,' but it was a lot longer.