In a 2021 Songfacts interview
, Nobel explained how the song evolved from the demo stage to the pop version she sang for the movie: "The demo version of the song sounds closest to the pop version of 'Beginning Middle End' that you hear playing in the credits of To All The Boys: Always and Forever
. Although the pop version was definitely dialed up intensity-wise and had a little more polish than our demo. The Always and Forever
version was a longer process. My collaborator Quinn Redmond and I worked in tandem with the music supervisors of the film to craft the song perfectly for the slow-dance scene. Overall, there were minimal changes to the lyric across the board but lots of sonic adjustments to create the Always and Forever
version. Including the amazing string arrangement."