What does the fox say??

Recently a very strange song has risen into popularity, hitting 43 million views on YouTube. it is a comedy dance song called "The Fox". The fox was written by a Norwegian duo known as Ylvis. Basically the song questions what sound a fox makes. "What does the fox say? Ring ding ding a ding a ding a ding ding ding.".

The song really makes me wonder, how do things like this become famous? yes, it is catchy, its been stuck in my head for a week now, and yes, it is amusing, but as far as the overall quality of the song, it sounds like many of other songs I've heard. Maybe its just pleasant to the human ear, this kind of sound. I don't know.