so the fortnite default dance was ripped from the show scrubs
https://techcrunch.com/2018/12/18/fortnite-dances-epic-sued/
“A growing cluster of actors, musicians and viral internet stars have Fortnite in their crosshairs. The smash hit third-person shooter is free to play but generates mountains of revenue through in-game microtransactions. Those purchases lure avid Fortnite players to spend real-life cash on virtual cosmetic items, like special character skins (today: a winter skiing set!) and, most importantly, dance moves.
Now, Fortnite creator Epic Games faces two new lawsuits over dance moves: one from actor Alfonso Ribeiro, who played Carlton on the TV hit “Fresh Prince of Bel Air” in the 1990s and another from the family of Russell Horning, better known as “Backpack Kid,” who created a viral dance called “the Floss.” Horning’s lawsuit also names 2K Sports, maker of NBA 2K, for that game’s depiction of his dance. Earlier in December, rapper 2 Milly filed a lawsuit against Fortnite maker Epic over the game’s depiction of his dance move, the Milly Rock, which the game calls “Swipe it.”… ”