We already mentioned that Gojira and Opeth are touring together in 2017, and now they've added a handful of high-profile bands to their Philadelphia show, making it a super-sized version of an already-big metal bill. They'll be joined by Mastodon, Eagles of Death Metal, Russian Circles and Devin Townsend Project for the mega-show. It goes down at The Electric Factory on May 6, and tickets are on sale now.

Mastodon have toured with both Gojira and Opeth in the past. Listen to music from each of the new additions, and check out tour dates for Opeth and Gojira, below.

Opeth/Gojira -- 2017 Tour Dates

5/4 Nashville, TN @ War Memorial Auditorium

5/5 Concord, NC @ Charlotte Motor Speedway (Carolina Rebellion)

5/6 Philadelphia, PA @ The Electric Factory*

5/7 Sayreville, NJ @ Starland Ballroom

5/9 Chicago, IL @ The Vic Theatre

5/11 Morrison, CO @ Red Rocks

5/12 Kansas City, MO @ Arvest Bank Theatre at the Midland

5/13 Indianapolis, IN @ Egyptian Room at Old National Centre

5/14 Somerset, WI @ Northern Invasion Fest

* w/ Mastodon, Eagles of Death Metal, Devin Townsend Project, Russian Circles

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