Taylor Swift's Emotional Tribute to High School Best Friend Abigail in Nashville.

During the second night of The Eras Tour in Nashville, Taylor Swift dedicated her song "Fifteen" to her high school best friend, Abigail Anderson Berard, who was in attendance. Swift added a new line to the song, reflecting on their past and how they both cried over a boy who changed his mind. The pair shared a photo on Instagram earlier in the week, captioned "‘Cause when you’re… 33."