Over 40 summers ago on August 31, 1970, 35-year-old Leonard Cohen was awakened at 2 a.m. from a nap in his trailer and brought onstage to perform with his band at the 3rd annual Isle Of Wight music festival.

The audience of 600,000 was in a fiery and frenzied mood, after turning the festival into a political arena, trampling the fences, setting fire to structures and equipment and stoked by the most incendiary performance of Jimi Hendrix's career, less than three weeks before his death.

As Cohen followed Hendrix's set, onlookers (and fellow festival headliners) Joan Baez, Kris Kristofferson, Judy Collins and others stood sidestage in awe as the Canadian folksinger-songwriter-poet-novelist quietly tamed the crowd. Take a listen and be amazed by this live recording.