Which Taylor Swift co-writer also co-produced “august” with her?

Jack Antonoff co-wrote and co-produced Taylor Swift’s “august.”

Antonoff became one of Swift’s most important recurring collaborators during the making of Folklore. He contributed songwriting and production to several Swift projects, helping shape the layered keyboards, guitars, strings, and atmospheric sound associated with “august.”

The song combines dream-pop, guitar-pop, and soft-rock elements. Its arrangement uses dense reverb and a gradually expanding texture to support the narrator’s memories of a brief summer romance.

Aaron Dessner was another major Folklore collaborator, but he did not co-write “august.” Dessner co-wrote and produced several other songs on the album, which is why listeners sometimes attribute every Folklore track to him. “august” is specifically credited to Swift and Antonoff as writers and producers.