Artist: Taylor Swift - Producer: Jack Antonoff - Mixer: Serban Ghenea - Assistant Mixer: Bryce Bordone - Recording Engineer: Jack Antonoff - Recording Engineer: Laura Sisk - Recording Engineer: Oli Jacobs - Asst. Recording Engineer: Jack Manning - Asst. Recording Engineer: Jon Sher - Asst. Recording Engineer: Megan Searl - Asst. Recording Engineer: Rémy Dumelz - Asst. Recording Engineer: Daniel Cayotte - Asst. Recording Engineer: Joey Miller - Asst. Recording Engineer: Jozef Caldwell - Mastering Engineer: Randy Merrill - Cello: Jack Antonoff - Programming: Jack Antonoff - Drums: Jack Antonoff - Percussion: Jack Antonoff - Synthesizer: Jack Antonoff - Piano: Jack Antonoff - Wurlitzer electric piano: Jack Antonoff - Mellotron: Jack Antonoff - Violin: Bobby Hawk - Vocals: Taylor Swift - Composer/Author: Taylor Swift