What series is this?

http://www.youtube.com/watch?v=q-ZUu0Vfm_Y

Please, feel free to laugh at this clip. All credit goes to Kimiden.

Melancholy of Haruhi Suzumiya, a good anime that became one of the biggest successes in years overnight. I'm surprised you haven't heard about it. But as I'm pretty sure is obvious, the Amazon song is inserted by a fan.

I've heard of it. Just haven't gotten around to watching any episodes.