Jepsen told Entertainment Weekly how the song came to be part of the movie:
"That was actually a contender for [E·MO·TION: Side B] and, originally, the first album. It was almost too cinematic and theatrical. I was like, 'If I had my way with it, this would be great for a musical or movie!'
When Ballerina came along, I met with people as I was doing the voiceover…and they were showing me a couple scenes. There was one in particular where they were like, 'We're looking for the right song for this, do you have anything?' I was like, 'Actually, this has been in my back pocket. I've been saving it for the B-sides, but if this works for you guys, I'd be stoked to share it.'"