And it’s really rather simple once you get the hang of it… you take a piece of floss, that’s the length of the tip of your fingers to your elbow and you wrap it around your middle finger ...

And it’s really rather simple once you get the hang of it… you take a piece of floss, that’s the length of the tip of your fingers to your elbow and you wrap it around your middle finger ...

the so-called Backpack Kid who helped popularize the viral “Floss” dance. For years, those cases faced skeptical judges who questioned whether simple dance moves were covered by copyright law.