Wow. Just Wow. This thing must of taken months to accomplish. For those of you who aren't familiar with the idea behind automatic mario they're custom Super Mario World levels that end up playing themselves through the use of bounce blocks. Joystiq has compiled a small collection of some of them, you can find them here. Then they sinked automatic mario to anime music. 

Then this video was released. Not only is it a 11 minute long anime music mash-up (or I suppose medley is probably the more correct term) that is not only synced with the music but uses the in-game sound effects to compliment it. Turn up your volume and spend the next 11 minutes doing what I did, sitting back, mouth open, and thinking this is bloody awesome.