The new app follows Lennon's travels to Bermuda during the last year of his life, while working on songs for what was to become the album "Double Fantasy."

In the app the user will be able to hear demos of the songs "Woman," "Starting Over," "I'm Losing You," "(Just Like) Starting Over," "Nobody Told Me" and "Dear Yoko." There is also an interactive element to the app in which the user can visit a disco.