Which artist co-wrote Taylor Swift’s “August” with Swift?

Jack Antonoff co-wrote Taylor Swift’s “August” with Swift.

Antonoff and Swift had already collaborated on songs for albums including 1989, Reputation, and Lover before working together on Folklore. For “August,” Antonoff created the instrumental first and sent it to Swift, who wrote the lyrics and melody in response.

Antonoff also co-produced the track. His contribution helped shape the song’s layered arrangement, which combines guitar-based pop with dream-pop textures, strings, keyboards, and a large reverberant sound. The collaboration reflects the close songwriter-producer partnership that became important to Swift’s later work.

Aaron Dessner is a frequent collaborator on Folklore, but he did not co-write “August.” Joe Alwyn was later recognized as a co-producer of the song, but he is not listed as its co-writer. These distinctions make the credits easy to confuse.