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Keith Urban says his latest single, "The Fighter," is pretty much the story of the early part of his courtship with his wife, Nicole Kidman.
"It was just a very quick song to write, cause I literally just thought about Nic and I and our relationship in the beginning and some of the things that we said and it all went into that song."
Keith says he knew the song was a knockout the minute he heard Carrie Underwood sing on it.