John Lennon

Demos, outtakes and previously unreleased live tracks document era with Yoko Ono and the Plastic Ono Band around time of 1972's 'Some Time in New York City.'

They made a habit of resurrecting unreleased material, with some tracks dating back to their teens.

This band was not above lobbing potshots at one another, but they also took aim at a host of other worthy targets.

Dylan's motorcycle accident, Lennon’s "Bigger than Jesus" comment and Cream’s debut show all took place on the same date.

There would be just 10 short years before an assassin's bullets cut short his life and solo career.

Some very good songs stood out in an era of catastrophic lows.

Frank, even brutal honesty about his hopes, his fears and his heart animated the first decade after the Beatles split.

Other rock acts with exclusive releases include David Gilmour, Fleetwood Mac, Judas Priest, Motley Crue, Queen and Yes, among others.

It will air on HBO and stream on Max later in the year.

We understand that you've got complicated feelings about certain songs.