What's wrong with this picture? is a YouTube screamer published in July of 2009 by the user rutgerhauerfan. It starts with a message saying that there's a strange thing in the image, but he can't find it, so he's challenged the viewer to find it.
It then shows a picture of a simple merry-go-round in sepia tone moving to the right and down. After that, the video says to have a closer look, and the picture shows again, but without moving. After 8 seconds, the picture starts to fade-out and the video asks if you have seen it.
After that, the video says to look closer and concentrate, and then the merry-go-round picture shows again, but it now shows a close view of the picture. At 1:25, a black and white photo of a demon girl in a mirror with bleeding mouth and eyes appears, with the same scream used in The Maze.
This screamer was used as an example in a wikiHow article called How to recognize an internet screamer and is one of the most famous screamers to circulate the internet like Zoeken, Where's Waldo, and What's Wrong.
NOTE: The following video contains a screamer.