Google search “greatest rock albums 70s” and London Calling is there. The Clash were on their third album so their musical prowess was already apparent. Then London Calling happened, the marker of musical maturity that it was. This album uses a multi-genre soup to attack political and social issues that still resonate today: police brutality, race relations, and good old teenage angst. There are nineteen tracks on this beast of an album and this album – a punk rock album, mind you – clocks in at over an hour. Yet there is not a single weak track.