"Ewok Celebration" (originally known as "Varner's Vindication"), known commonly as "Yub Nub" or "Yub Yub", is the title of a 1983 song that appears in the end of the Star Wars film Return of the Jedi during the celebration of the Ewoks on Endor with the Rebel Alliance pilots after the destruction of the Death Star II.
"Ewok Celebration" was composed by John Williams, the lyrics in the Ewok language were written by ILM sound designer, Ben Burtt. The English lyrics were written Joseph Williams. It was published by Bantha Music and is administered by Warner-Tamerlane Publishing Corporation.
The song appears in an episode of the sitcom Spaced; the producers could not acquire the rights to use the original recording, so Edgar Wright and Simon Pegg performed and recorded their own version.