Former MÖTLEY CRÜE producer Tom Werman has slammed CRÜE bassist Nikki Sixx's book "Heroin Diaries: A Year in the Life of a Shattered Rock Star" as "totally deluded" and "stunningly inaccurate."

In a letter to the New York Times, Werman took issue with Sixx's assertion that he chatted on the phone during the recording of "Theatre of Pain", "Shout at the Devil" and "Girls Girls Girls" while Sixx did all the work.

"[New York Times writer] Alan Light's description in his review of 'The Heroin Diaries' (Jan. 27) of the heroin-besotted Nikki Sixx as 'bratty and self-destructive' is on the money, but having been there and having read the book, I would go with 'totally deluded' or perhaps 'stunningly inaccurate,'" Werman wrote.

"As the producer of three MÖTLEY CRÜE albums over a four-year period, I found Sixx's allegation that in the recording studio he did 'all the work' with Vince Neil's vocals while I chatted idly on the phone not only humorous but pure fiction.

"If this distortion of reality is the result of Sixx's past heroin habit, then his diary is truly nothing more than a pipe dream, and the events to which this book refers may simply be the needle-induced fantasies of an attention-starved junkie."

This is not the first time Werman has clashed with one of his former clients over his contributions — or lack thereof — to recordings which have gone on to enjoy multi-platinum success.

Werman — who left his lifetime career as a heavy metal producer with 13 platinum and 10 gold records to his credit (including those by MÖTLEY CRÜE and TWISTED SISTER), to open Stonover Bed and Breakfast in Massachusetts with his wife, Susan, in July 2002 — famously traded verbal jabs with TWISTED SISTER in 2004 over their comments regarding his collaboration with the group on the double-platinum "Stay Hungry" album.