A simple Sebastian Bach tweet has sparked a war of he said-he said between the former Skid Row singer and Motley Crue's Nikki Sixx, with neither side looking like they're ready to give in.

As we previously reported, Bach recently told his Twitter followers that he was asked to join Motley Crue in the wake of Vince Neil's departure from the band in 1992. Sixx quickly retorted that Bach's version of events never happened. And Bach clearly doesn't take kindly to being called a liar.

"Well, it's not every day you wake up to one of your childhood heroes calling you a liar," Bach responded in a lengthy Facebook post. "It is incredible to me that Nikki Sixx, one of my childhood heroes, would go on his radio station to talk about one single tweet that I made. I did not realize that my tweets were this newsworthy."

Childhood hero or not, Bach insists Sixx is either lying himself or was too, um, incapacitated during the '80s to remember much of what he did. "What did they say about the '80s? If you remembered it, you weren't really there?" joked Bach, going on to point out what he claims is a discrepancy in a passage from Sixx's 'Heroin Diaries' memoir. "Do I think Nikki Sixx is actually 'lying'? Not really. I am sure that all of the heroin and partying and drinking would affect a man's memory ... Nikki Sixx is either calling me a liar, or his memory is wrong in this instance. I am willing to assume the latter."

Bach went on to say that his brief gig with Motley Crue included a full day's rehearsal and a slew of phone calls between various managers, agents and label execs. "I was driven to rehearsal by Tommy Lee, and I spent a full day singing the Motley Crue set with the band Motley Crue," he recalled. "I remember the songs that Nikki asked me to sing that day. I remember the whole road crews' ecstatic reaction to us jamming together all day. And I remember Nikki's very generous, kind offer, at the end of our rehearsal, for me to join the band Motley Crue. I remember his exact words, that he said to me in front of his whole road crew, Tommy and Mick [Mars] as well. It's not every day that your hero asks you to join his band."

So what ultimately went down between Bach and the band? We'll have to wait to find out. "I will tell the complete story of Nikki offering me to join Motley Crue in my upcoming book, which will be arriving on bookshelves soon," he concluded. "I am not simply 'making this up' ... I am not a liar. I am working on my book right now and I look forward to you all reading it. I plan on my book having even more information in it than one of my tweets does."

9/14/13 Update: Looks like Sixx might get the last word on this one...

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