What a magnificent brothel fight these guys are having with words. Back and forth, in a tumultuous clench, you can almost hear their heart beats racing throughout the whole song.

Can you imagine something this complex, a song like this that not one second lets you be anything but baffled of its complexity, was written backstage at one of Taylor Swift's 1989 tour? Don't fret, because Shawn and Camila worked over four months on this, and as Camilla puts it, in a rather relieved way, "WE HAVE BEEN WORKING ON THIS SONG DAY AND NIGHT FOR FOUR MONTHS THIS FEELS AMAZING" (via Twitter). You can almost feel the tension she released last night, with the release of this song.

Give it a listen over here, and be sure to pick up Shawn Mendes' reissuing of "Handwritten Revisited", that's definitely going to feature this song.

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