Freakin' Scary Pop Up!

"Not to be confused with Scary Freakin' Pop Up"

Freakin' Scary Pop Up! is a screamer video uploaded by RandomAnimeChannel.

The video shows a colorful moving illusion set to a very quiet excerpt of Beethoven's 9th Symphony, 2nd Movement, but after 30 seconds, a picture of Regan MacNeil from The Exorcist pops up along with the explosion scream.

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