If you’ve been exercising your vocal cords to Taylor Swift’s album The Tortured Poets Department, it might be time to move on to other body parts—like your arms, legs, and core. We asked three fitness trainers how to turn a handful of Swift’s new tunes into a fun and effective workout. Fortnight Use the opening track on The Tortured Poets Department as a warm-up for the rest of your workout, advises Kelly Borowiec, a certified personal trainer in San Francisco. [time-brightcove not-tgx=”true”] Perform 14 reps (to mimic a fortnight) of each exercise. Arm circles: While jogging in place, extend your arms out and perform forward circular motions.