So little of the Beatles' musical legacy is live-based that 45 years later, it's still more than a little jarring to watch a clip of them simply performing one of their best songs live. The Fab Four's Apple rooftop performance would have become automatically iconic merely by being their first public performance in nearly a half-decade, but they also just sounded great — especially on "Don't Let Me Down," with John, Paul, and George's gorgeous three-part harmonies and late Fifth-Beatle candidate Billy Preston's lush electric piano giving folks all kinds of never-met expectations for the live experience the group could provide once the screaming of the young girls actually died down some.
