The Osbournes Want to Believe

Whenever Ozzy accurately guesses "double exposure", his son always corrects him that it's not possible with digital cameras. Of course it is! The video is passed through a video editor where one clip is super-imposed upon another one. YouTube video editors have been making fan music videos since the beginning of the site's creation, using Windows Movie Maker and sliding the new clip left, smack onto the clip that was first added and sitting left of the window pane. That is how digital double exposure is made.