 All tracks were produced by Greg Kurstin , with vocal production on " Every Christmas " made by Jason Halbert . 
 All tracks <a href='uninflect' title='1'><mark>were</mark></a> produced by Greg Kurstin , with vocal production on " Every Christmas " made by Jason Halbert . 
All tracks was produced by Greg Kurstin , with vocal production on " Every Christmas " made by Jason Halbert .