For those who are unaware, Mastodon’s longtime manager Nick John passed away last year. He was clearly very tight with the band because they’ve gone to great lengths to honor his memory. You can read more about the situation by CLICKING HERE.

Most recently, they did a cover of the Led Zeppelin classic “Stairway To Heaven” in honor of him. All proceeds go towards the Hirshberg Foundation for Pancreatic Cancer Research.

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