Fun fact: the Fitness Marshall (aka Caleb Marshall) - our favorite YouTube dance trainer - is obsessed with Britney Spears. We now get to benefit from Caleb's affinity for all things Britney,with this fun new dance he so graciously choreographed for us.
Related Stories: This Cardio Hip-Hop Routine to Sia's "Cheap Thrills" NEEDS to Be Seen (and Danced)fill fun sweating to her latest single, "create Me . . ." featuring G-Eazy; don't worry, and we'll be doing this at our desks.
Source: popsugar.com