While this video is not cursed, it is known to be very terrifying and haunting. In the video, we hear what happens to be a baby laughing, while photos appear, one creepy one appearing to be a gray photo of two babies holding hands with a weird look on their face. The laughing slowly becomes high pitched. It's possible your ears will bleed if you turn the volume to 100%, even with headphones on.
UPDATE: The video is cursed, and watching the video will cause the viewer to hear voices or feel someone's watching them.