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MONTREAL, QC - AUGUST 07: Michael Amott of Arch Enemy performs on Day 1 of the Heavy Montreal Festival at Parc Jean-Drapeau on August 7, 2015 in Montreal, Canada. (Photo by Mark Horton/Getty Images)

MONTREAL, QC - AUGUST 07:  Michael Amott of Arch Enemy performs on Day 1 of the Heavy Montreal Festival at Parc Jean-Drapeau on August 7, 2015 in Montreal, Canada.  (Photo by Mark Horton/Getty Images)