analog

Because it's extremely easy to imitate. You don't need special effects or even much editing to make it look good- in fact, as these people did, doing single-shot vids can be much more fun, if harder, to make. Even though this doesn't really parody the original, it's still not so far off base (party atmosphere) that you wonder what the hell they're doing. Plus, the words are easy and clear, so lip-syncing works well.

And it's a fun song.