
It's a story you already know, the minutiae of which have long been sifted by Beatle-ologists and more recently exhaustively exposed in Peter Jackson's epic 2021 Get Back reworking of the original Let it Be footage. But until the last minute, no one was even sure if it would happen.
Let it Be director Michael Lindsay-Hogg recalled that some of the band, already reluctant, were seriously considering nixing the Beatles' now-legendary rooftop gig at the last minute, despite preparations being in place.