Seasons

One of the heaviest acoustic songs ever, and one of my absolute favorite is Chris Cornell's "Seasons." I first heard it on the soundtrack to Singles, an early 90s movie set in grunge-era Seattle, WA.

If you'd like to attempt it yourself, you'll need to tune your guitar into a pretty unusual tuning.

http://community.pearljam.com/discussion/173123/chris-cornell-seasons-guitar-tuning-help

Here's the song to get you started.
https://itun.es/us/zjoGl?i=192995985