9. 'Ten Years Gone'
Much like Bob Dylan's "Simple Twist of Fate," Zeppelin's 1975 track "Ten Years Gone" is a nostalgic look at a lost love from a decade back. In Zeppelin's case, the woman insisted that her man pick the music or her; needless to say, he went with the former. "I was working my ass off before joining Zeppelin," Robert Plant said in 1975. "A lady I really, dearly loved said, 'Right. It's me or your fans.' Not that I had fans, but I said, 'I can't stop, I've got to keep going.' She's quite content these days, I imagine."