“It didn’t take Royal Blood long to reach the top. When they emerged in 2013 they were an amped-up, old-school rock phenomenon – and duly captured the global imagination with 2014’s debut album. In its first week, that self-titled record sold 66,000 copies. There was talk of them spearheading a new wave of bombastic British rock, but the fact that the meteoric ascent of the Brighton duo – singer/gu”