Released: October 27, 2014

Genre: Electropop, Synth-Pop

Length: 01:05:11

Label: Big Machine Records

Producers: Taylor Swift (Executive producer), Jack Antonoff, Nathan Chapman, Imogen Heap, Greg Kurstin, Max Martin (Executive producer), Ali Payami, Ryan Tedder, Noel Zancanella, Mattman & Robin Shellback