Joe Alwyn is credited as an additional producer on Taylor Swift's song "august," alongside Swift and Jack Antonoff.
Alwyn's production credit is connected with his pseudonym William Bowery, which he used for songwriting and production contributions on Folklore and Evermore. For "august," however, the song's credits identify Joe Alwyn directly in the producer listing.
Swift and Antonoff are the song's credited writers, while all three—Swift, Antonoff, and Alwyn—are credited as producers. This distinction matters because songwriting and production credits are not interchangeable.
A common mix-up is Aaron Dessner, who was also central to Folklore's creation and co-wrote several songs on the album. Dessner was not the additional producer credited on "august."