Just as rock in the 60s is getting really interesting, here comes the British Invasion and a chapter full of Brits (excluding Jay And The Americans, natch.) The Beatles took a good sound and made it better, streamlining the arrangements while adding unusual harmonics or middle-eight key changes to keep the energy level high. The Rolling Stones shamelessly stole their best tricks from blues legends but revved them into overdrive. The Kinks, the most constitutionally British of all of them, play the brainy, self-effacing foils. Ground zero for classic rock.