'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. Writing this song with him was so much fun because, you know, we were sitting in my backyard writing the song and he started singing harmony on it and I asked if he would record it with me as a duet, because it's about this moment that both people are having where they see each other and all of the sudden, the world looks different. 'Cause everything changed. 

hey, hey, hey, just think while you've been getting down and out about the liars and the dirty dirty cheats in the world you could have been getting down to this sick beat

“I was listening to a lot of late 80’s pop, because I really loved the chances they were taking I loved how bold they were. So being inspired by that I started delving into the late 80’s - and what I found was that it was apparently a time of limitless potential. And the idea that you can do what you want, be who you want, wear what you want, love what you want - bright colors, bold chances, rebellion. The idea of that was so inspiring to me…but basically in thinking about that, and thinking about how this new album is a bit of a rebirth for me because it’s so now. I’ve never really made these kinds of changes before. And having been born on December 13th, 1989…this album is called 1989.” — Taylor Swift (via andthatlittleblackdress)