A couple of years ago when Star Wars: The Last Jedi was released, sound designer Mathew Wood revealed that the Star Wars films had retired the famous Wilhelm Scream. It was a classic scream sound that was used in the original Star Wars movie, and since then it had found its way into countless other films.

So, there’s a new scream that is being used in the future Star Wars projects, and that scream debuted in Rogue One: A Star Wars Story and was also used in Star Wars: The Rise of Skywalker. We now know the source of the new scream thanks to a recent interview with sound designers Wood and David Acord.

They told ABC News that the new scream is actually the voice of Star Wars creator George Lucas himself! They explained that Lucas recorded the scream in 1973 for American Graffiti, which is pre-Star Wars. They also said that this particular scream was used in other movies, but didn’t reveal which ones.

Lucas referred to the scream as a Star Wars “calling card” and the scream even has its own name. They call it, “The George.” While Acord and Wood acknowledge they did use a special scream in The Rise of Skywalker, they won’t say where it appears, and they won’t even confirm that it’s Lucas’s. But with the way they are talking about it, it obviously is.