The Beatles were arguably the biggest influence on music of the past century. They were, by far, the biggest musical influence on my life.

When the four boyhood friends dissolved their musical partnership, there were legal battles, bitterness, and resentment. John penned the venomous "How Do You Sleep?", aimed at former songwriting partner Paul McCartney. He recorded it in May, 1971 with former bandmate George Harrison on slide guitar.

John and Paul would eventually mend their fences about 5 years later. Watch this rare footage of the recording session...

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