Which two musicians joined Taylor Swift for “august” at the 2021 Grammys?

Jack Antonoff and Aaron Dessner joined Taylor Swift for “august” at the 63rd Annual Grammy Awards in 2021. Their appearance connected the live performance directly to Folklore’s collaborative studio sound.

Antonoff co-wrote and co-produced “august,” while Dessner was another leading producer and musician on Folklore. The three had not previously performed together before that Grammy appearance.

The performance formed part of a medley that also included “Cardigan” and “Willow.” This arrangement highlighted the album’s recurring characters and atmosphere while giving each collaborator a visible role in the live presentation.