Taylor Swift wrote the song with Aaron Dessner. Swift is a fan of Dessner's band, The National, and she included their tracks "Light Years" and "Rylan
" on a May 2019 playlist of Songs I'm Loving Right Now.
Swift texted Dessner the following April, asking if he wanted to collaborate, to which he readily agreed. The pair worked on 11 of the 16 tracks on Folklore
over the next several months. "We were pretty much in touch daily for three or four months by text and phone calls," Dessner recalled to Pitchfork
. "Some of it was about production and restructuring things but a lot of it was just excitement. We both felt that this was some of the best work we have done."