Taylor Swift and Joe Alwyn's relationship not only brought them closer but also led to a creative collaboration on some of Swift's songs. Alwyn, credited under the pen name William Bowery, contributed as a songwriter to several of Swift's tracks during their time together. Swift confirmed Alwyn's identity as Bowery in her November 2020 documentary, 'Folklore: The Long Pond Studio Sessions.'
Alwyn's songwriting efforts with Swift were recognized when she won the Album of the Year Grammy for 'Folklore' in 2021. Swift acknowledged Alwyn's support in her acceptance speech, highlighting their productive songwriting sessions during quarantine.
Despite Alwyn expressing in a 2022 interview with Elle magazine that he didn't foresee continuing to write songs with Swift, he later collaborated on 'Sweet Nothing' from her 2022 album 'Midnights.'
Following their six-year relationship, Swift and Alwyn parted ways, but Alwyn continues to receive royalties for his songwriting contributions. Reports suggest that he earns a five-figure sum annually due to his involvement in the songs.
Alwyn shared insights into the creation of 'Betty,' a track he co-wrote and co-produced with Swift. The song originated from a spontaneous piano melody session that evolved into a full-fledged duet with Bon Iver.
In addition to 'Betty,' Alwyn is credited as a cowriter on a ballad from Swift's 'Evermore' album, depicting a poignant tale of college sweethearts with divergent plans for a significant night.
Collaborating with Aaron and Bryce Dessner of The National, Alwyn also contributed to another duet featuring Bon Iver. Their joint effort culminated in the track 'Midnights,' marking Alwyn's final songwriting endeavor with Swift before their breakup.