<P> "Everything Has Changed" is a song written and performed by American singer - songwriter Taylor Swift and English singer - songwriter Ed Sheeran, taken from Swift's fourth studio album, Red (2012). Produced by Butch Walker, the track was released as the sixth single from the album on July 16, 2013 . "Everything Has Changed" is a guitar ballad combining folk and pop genres about "wanting to get to know a new lover better". </P> <P> The single gained mixed reviews from music critics, who were ambivalent towards its composition . "Everything Has Changed" peaked at number 32 on the US Billboard Hot 100 and entered the top ten charts of countries including Belgium, Ireland and the United Kingdom . A music video for "Everything Has Changed" was released on Swift's VEVO channel on June 6, 2013 . Swift performed "Everything Has Changed" with Sheeran on Britain's Got Talent on June 8, 2013 . Swift also performed the track on her Red Tour (2013). </P> <P> It was reported that English singer - songwriter Ed Sheeran would appear as a guest artist on American recording artist Taylor Swift's then - upcoming album Red . On October 18, 2012, "Everything Has Changed" by Swift featuring Sheeran was leaked online . The song was written by Swift and Sheeran in Swift's backyard . "Everything Has Changed" is a guitar ballad, blending folk - pop genres . Written in the key of G - flat major, it has a moderate tempo of 84 beats per minute . The duo's vocal range spans from G ♭ to D ♭ . Lyrically, the track talks about "wanting to get to know a new lover better". Swift further explained the song's theme, "Everything looks different to you because of this one person, because one new person came into your life . It's really cool". </P> <Table> <Tr> <Td> </Td> <Td> "Everything Has Changed" A 24 - second sample of "Everything Has Changed" </Td> </Tr> <Tr> <Td_colspan="2"> Problems playing this file? See media help . </Td> </Tr> </Table>

Who did taylor swift wrote everything has changed about
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