Mastodon – Mayhem Festival – First Niagara Pavilion – 7/12/2013 seanb July 17, 2013 [Show as slideshow] Tags: Bill Kelliher Brann Dailor Brent Hinds First Niagara Pavilion Mastodon Mayhem Festival Rockstar Energy Drink The Hunter Troy Sanders Continue Reading Previous Amon Amarth – Mayhem Festival – First Niagara Pavilion – 7/12/2013Next Five Finger Death Punch – Mayhem Festival – First Niagara Pavilion – 7/12/2013