Riding the release of their sophomore album ‘How Did We Get So Dark?’, Royal Blood hit the Lollapalooza stage in Chicago’s Grant Park in 2017 and delivered exactly what makes them one of modern rock’s most compelling live acts, with Mike Kerr’s bass running through a complex pedal setup that alternates between screaming lead lines and floor-shaking low end while Ben Thatcher drives everything forward with relentless precision, the two of them generating a wall of sound that no one in that crowd would have guessed came from just a duo.