This was the fastest song that Keith Urban wrote in a long time. He recalled to The Boot
"I was working with busbee that day; we were in London. I was actually driving to the studio to work on this other song we started, and I had most of it the chorus in my head, and it felt like I had most of the song in my head - the verses just had to flesh out. I walked into the studio and played the chord progression, and he built this track really quickly, and then I could sing over the top of it.
I think we put down the chorus pretty much straight away, with busbee filling in where the girl would sing. I still have a copy of him - [mimics Underwood's part] - and so, that's what I had as a placeholder for a long time, until I beautifully heard Carrie's voice on it finally one day.
It was just a very quick, quick song to write, because I literally thought about Nic and I and our relationship in the beginning, and some of the things we had said all went into that song."