Selena Gomez

Despite not having any direct experience with the paranormal, Selena Gomez is still a firm believer in the undead.

Appearing on 'The Tonight Show', the singer told host Jimmy Fallon: "I believe in ghosts, so I have a ghost app … I believe that spirits can tap into technology. Why not, right?"

Gomez also said that the app had previously detected paranormal presences around her. She said: "Look, I was in a venue, and it actually said people in my life by name."