Producer: Louis Bell - Artist: Taylor Swift - Producer: Frank Dukes - Producer: Taylor Swift - Recording Engineer: Louis Bell - Mixer: Serban Ghenea - Mix Engineer: Bryce Bordone - Mastering Engineer: Randy Merrill - Keyboards: Adam Feeney - Programming: Adam Feeney - Programming: Louis Bell - Guitar: Adam Feeney - Guitar: Matthew Tavares - Composer/Author: Taylor Swift