Using computer generated images of stars who are alive is also being considered after executives saw Celine Dion perform with a hologram of Stevie Wonder at her show. She also sang with a 3D hologram of Elvis on American Idol.
"The X Factor has to keep getting better so they are looking at holograms as a way of creating a splash," a source told The Sun.
"Imagine Elvis or Amy Winehouse at the grand final. It would be incredible TV and an amazing experience for contestants. The technology's there and has been used on several big stages.
"The X Factor final is perfect for something like this. It nearly happened last year after show boss Richard Holloway saw the Stevie Wonder hologram at Celine Dion."