The various Bond theme songs and their rejected versions is a rabbit hole that I'm struggling to NOT tumble down. I have know of the Johnny Cash Thunderball tune and a few others for years but I haven't been able to get the Julie Rogers version of this one out of my head for days now. Check them out and hear what I'm talking about. I like them both but Miss Rogers' version sticks with me for some reason.
Here's the original version by Nancy Sinatra -
And the rejected Julie Rogers take
What do you think? Better? Worse? An intriguing path not chosen at the very least.