A song slowed 800 percent by Justin Bieber. It's actually really cool, relaxing, and soothing. Around the 2:20 mark it gets amazing.
http://www.youtube.com/watch?v=QspuCt1FM9M
Very cool in my opinion. There are a lot of other songs like this too like:
Bad romance by gaga- http://www.youtube.com/watch?v=O78whwZY ... re=related
Party in the USA- http://www.youtube.com/watch?v=LsTlB7I_ ... re=related
And the Simpsons theme song- http://www.youtube.com/watch?v=zSVjKcVT ... re=related