Ghost Illusions in Clouds

Ghost Illusions In Clouds is a 30-second screamer video uploaded to YouTube by thescaryscreamers on January 22, 2011.

The video pretends to show a "mysterious ghost", that can apparently be seen in a picture of the sky, purportedly captured by the uploader "and his friends while at home". The ghost is supposedly a black face in the clouds. It then shows a still picture of a cloud-filled sky. But at the end of the video, a negative image of Regan MacNeil from The Exorcist pops up with the scream from What's Wrong?, extremely loud and repeated four times. After some seconds the text "You just got pranked by a screamer..." is displayed.

Link
NOTE : The following video contains a screamer!
 * youtube.com/watch?v=P7hUcbkcJAY