John Lennon

He was there on the fateful day the two future Beatles met.

Exclusives include Robert Plant, Neil Young, John Lennon, Black Sabbath, Bruce Springsteen, Alice Cooper and Pink Floyd, among others.

He says "John would be alive" if he'd done one thing differently.

It involved Phil Spector, the founder of 'Rolling Stone' and a witch.

The incident took place at a New York party in the early '70s.

The Pink Floyd legend's estate got a huge paycheck from the sale of the band's catalog.

Public war of words was brought to a close in private, says guitarist and producer, who can’t recall meeting Prince but remembers upsetting the Band.

Next month will be dominated by expanded box set releases, including deep dives into the archives of John Lennon, Bruce Springsteen, the Who and Elton John.

Clip comes from his and Yoko Ono's One to One Concerts and upcoming box set, 'Power to the People.'

The restored and expanded project includes a brand-new disc of music and previously unreleased episode to stream.