It's been six years since Taylor Swift released her Red album

And so we are going back and revisiting our conversation with Taylor when she first released the album

And the next song that we're gonna play, and that I had a chance to talk to Taylor about, was a duet that was on Red that everybody was excited about

It's Everything Has Changed

Everything Has Changed is a song that I wrote with Ed Sheeran and he is such a talented person in so many ways

He's such an incredibly talented guitar player, and singer and songwriter and performer and writing this song with him was so much fun

Because we were sitting in my backyard writing this song and, um, he started singing harmony on it and I asked him if he would record it with me as a duet

Because it's about this moment that both people are having when they see each other and all of a sudden the world looks different 'cause everything changed

I love this song and I love the video

Here's Everything Has Changed on Big Machine Radio