This is, in a word, batshit insane.
But for true, mind-numbing insanity, we have to go to Japan. It is with great reluctance that I subject you to: Pon Pon -
That video somehow managed to hit a point of diminishing returns on craziness.
And this final video isn't crazy in the traditional sense. It asks the question, "What does English sound like to someone who doesn't speak English?" The answer is apparently quite catchy. Here's Prisencolinensinainciusol.