<p>The Fitness Marshall is throwin' down some serious sass in the latest dance cardio video, choreographed to Katy Perry's "Swish Swish." According to "Coach Caleb," this is "tennis practice," for reasons we'll let you find out for yourself.</p>

We Can't Quit Dancing to Ariana Grande With The Fitness Marshall

<p>This fabulously fun dance will have you sweating within seconds. Get ready for "sassy snaps" and "tennis arms" . . . and, of course, a lot of laughs.</p>

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The Fitness Marshall "Swish Swish" Katy Perry Dance Cardio

The Fitness Marshall is throwin' down some serious sass in the latest dance cardio video, choreographed to Katy Perry's "Swish Swish."

Live Your Most Fabulous Life With The Fitness Marshall's "Swish Swish" Dance Cardio

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BODYARMOR Zero Sugar-517e4f

Whether you're new to the fitness world or not, there's always room for improvement when it comes to your workouts.