Guns 'n' Roses: 'Civil War' - Born from an instrumental Slash and Duff McKagan used to play in a sound check this Guns 'n' Roses song took on a life of its own when Axl Rose wrote lyrics around it. Essentially an homage to Vietnam style protest songs 'Civil War' mentions both Kennedy and Martin Luther King whilst playing with the dual meaning of the word civil in Civil War.
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