But the audio is the real key. There is no "Happy Birthday" song. Instead, there is a warped music box playing a tune that sounds like a lullaby being played backwards. Underneath that, you can hear the faint, distant sound of children laughing, but the laugh loops every four seconds. Mechanical.
The title evokes a specific niche of internet content that blends childhood nostalgia with a sense of unease. Videos of this nature typically feature: Baby-Doll - Dreamlike Birthday.avi