See Also: • (Photos) Mastodon, Opeth and Ghost at the Fillmore Auditorium, 4/23/12 • Q&A with Bill Kelliher of Mastodon • Now, that's what you call a metal shirt. Nice work, Havok • The ...

Mastodon filled the middle slot last night at the Fillmore (Mastodon and Opeth are alternating middle and closing slots on this co-headlining tour) and played a variety of new and old material ...