Slipknot embarked on a six-week long tour around North America and brought Polish extreme black metal blasphemers Behemoth along with them for the ride. Knotfest Roadshow 2019 was without a doubt the summer’s heaviest-hitting metal festival tour. I was fortunate enough to be approved to photograph Behemoth and all three of the other bands on the lineup. Continue reading below for full concert review. All images copyright and courtesy of Andy Jillson.