Yub Nub was composed for Star Wars: Episode VI Return of the Jedi in 1983 as the Ewoks' victory celebration on Endor. Written by Joseph Williams with Ewokese lyrics, it closed the original theatrical version of the film before later editions replaced it with a new score. Fans kept the song alive through rewatch clips, conventions and memes, and its catchy chant became a nostalgic symbol of the original ending. It is now shared online whenever a fandom moment or everyday success calls for an unmistakably joyful, retro Star Wars celebration.