“Birch” is the fourth track from Big Red Machine’s second studio album, How Long Do You Think It’s Gonna Last?, and is one of two Taylor Swift features on the album, the other being pre-release single “Renegade”.

This isn’t the first time the artists have collaborated, with Aaron Dessner responsible for producing Swift’s eighth and ninth studio albums folklore and evermore. Swift has also previously shared duets with Justin Vernon on her tracks “exile” and “evermore”, while Vernon also contributed backing vocals and played instruments for many other tracks on evermore.