Hear 99 metal musicians from Pantera, Slayer, etc. cover "99 Bottles of Beer"

Sing along with members of Pantera, Slayer, Mastodon, and 97 other metal musicians performing the folk standard "99 Bottles of Beer!" Listen here:

From Spin:

The project was put together by Scour's Derek Engemann and Nest's John Jarvis. All proceeds from the song will benefit the Old Dog Haven, a charity that helps old dogs find homes. Assembling the track literally took years.

"This has been an epically fun project involving the entire Metal scene, and even a few Ska bands! This project originally began back in 2013, but was brought back to life once we discovered Old Dog Haven," Engemann said on a GoFundMe page for the charity.