“Everything Has Changed” is a song about realizing your life has flipped upside down after falling for someone new. The track appears on Taylor’s fourth album, Red, and features vocals from her close friend and first time collaborator Ed Sheeran.

The music video for the song follows a day in the life of two young children in the same elementary school class. They are both misfits and become good friends, but their platonic feelings turn to something more. At the end of the video, it is revealed that the girl is Taylor’s daughter and the boy is Ed’s son.

The hidden message for this song is “Hyannis Port” which is where Taylor spent 4th of July with Conor Kennedy.