What dancer and social media personality is behind the viral YouTube dance trend known as the "floss"?

The floss is a trendy dance move that involves a person repeatedly swinging their arms from the back of their body to the front, on each side. This trend became popular when Russell Horning, AKA the backpack kid, posted a video of himself doing the strange dance in 2017.

Asked by Rachel Bortles · Last updated 5 years ago · 140 views · SOURCE