Jack White describes meeting Bob Dylan as an "honour".
The singer says their friendship started as an "accident" after he went to watch the legendary musician play in his hometown, Detroit, and found out he'd been playing one of his tracks to warm up.
Jack explained: "I went and saw him play in Detroit and he said to me, 'We've been playing one of your songs lately at sound checks.'
"I thought, Wow. I was afraid to ask which one. I didn't even ask. It was just such an honor to hear that."
Jack later realised Bob was keen on him appearing on stage with him that night.
Jack told The Wall Street Journal paper: "Later on, I went home and I called back. I said, 'Can I talk to the bass player?' I called the theater.
"I was like, 'Did Bob mean that he wanted me to play tonight? beause he said some things I thought maybe... Maybe I misconstrued. I don't want to be rude and pretend that I didn't hear or something like that.'
"So it turned out yeah, we played together that night. He said, 'Yeah, come on, let's play something,' and we played 'Ball and Biscuit,' one of my songs. It's not lost on me that he played one of my songs, not the other way around."