Strange, but true. Don't hear too many metal songs played acoustically and certainly don't know if it will sound better or worse. Either way, it would be interesting. Click here to read the details. (Damn, it's in London...too far!)
http://www.ironmaiden.com/ironmaiden/news/news_100902.asp
http://www.ironmaiden.com/ironmaiden/news/news_100902.asp