I'm a bit more surprised why Elmo's World videos get enormous amounts of views in a short time. I mean, even an unpopular channel or a spam account could upload a video with "Elmo's World" in the title or description (or just have anything with the word "Elmo" in it), and it would get like 10,000 views in less than a week. Are people just obsessive about Elmo or something?
BTW, the Girl Talk sketch is now on YouTube: