Read this: Lzzy Hale: The 10 songs that changed my life
Discussing their collaboration, Lzzy said to Amy: "What I love about duetting on that song with you is that it started out as as love song that I wrote for my significant other, but when we sing it together, it's this act of unity, especially with the two of us being women and being women musicians. It's like we have each other's backs. And the lyrics mean something completely different when I sing it [with you]."
Detailing how it was recorded, the vocalist continued, "We did it performance-style, literally next to each other in the same room – from beginning of song to end of song, singing with each other. I've never done anything like that, but especially with a female singer of your prowess."
Amy then added: "Nick [Raskulinecz, producer] always gets the challenge and gets the most out of me… So he made us stand there in the room and sing it live together a bunch of times. What that really means is that editing, you couldn't use when you did something cool but I messed up; it would have to be that we both nailed it for it to make the cut. So to do it in that way was really challenging and it was really cool and it fits the song so well.
"I remember you saying, and we both were saying, when we were listening back, it's really weird, at times – I know my part, but you can't pick out whose voice that is in that one particular moment, ’cause we started matching each other, ’cause it was on the spot. It's really cool how that happens. It feels like a match. It doesn't feel like any one person is pulling the other person along a little bit or leading the train. It really felt like an evenly matched dance."