This is the theme of the final boss of Super Paper Mario. This song is just sweet! It's so chaotic, beautiful, sinister, nice and uplifting at the same time. You really have to hear it to understand it.
You can download it here:
http://www.uploading.com/files/SA6N0YLB/70___The_Ultimate_Show.mp3.html
Or you can just listen to it here:
If someone would decide to make any kind of remix of this (preferably a techno one), thank you VERY much!