Thankfully, these two made peace before Porter Wagoner died in 2007. They were wildly successful together in the '60s and '70s, but when Dolly Parton left Wagoner's band in 1974 (after writing 'I Will Always Love You' for him), he filed a breach of contract lawsuit. Later, Parton revealed that things were often tense. "I don't mean this in a bad way ... but he was very much a male chauvinist pig," she told the Los Angeles Times in 2008.

"That's why we fought like crazy, because I wouldn't put up with a bunch of stuff ... I would go along to where I felt this was reasonable for me. But once it passed points where it was like, your way or my way, to prove to you that I can do it, then I would just pitch a damn fit. I wouldn't care if it killed me."