Pink Floyd - Dark Side Of The Rainbow

"Dark Side of the Rainbow (also known as Dark Side of Oz) is a perceived effect created by listening to the 1973 Pink Floyd concept album The Dark Side of the Moon while watching the 1939 film The Wizard of Oz for moments where the film and the album appear to correspond with each other. The title of the music video-like experience comes from a combination of the album title The Dark Side of the Moon and the film's song 'Over the Rainbow.'" -wikipedia