3. The Clash: 'London Calling' -
Capturing the iconic moment as Paul Simonon smashes his bass guitar onstage, this remains one of the greatest music photographs of all time even though the photographer Pennie Smith criticised it for being out of focus - she was moving for cover as shards of the bass flew at her when she took it. An image that encapsulates pure punk spirit from the band that probably defined it the most.
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