"Oh man, it got me emotional there", Corden said, wiping his eyes after the song. McCartney then recalled the remarkable circumstances under which he penned the Beatles classic "Let It Be", the title track to their final album.
Shocking the homeowner with an impromptu visit, McCartney shows Corden around the house.
But perhaps the most powerful moment happens when McCartney and Corden sing "Let It Be" in the auto and Corden chokes up with tears.
After getting back in the vehicle, Corden says Sir Paul's music is "so full of positivity and joy", and "more relevant now today than it's maybe ever been". "We expected it to last 10 years but it keeps going on and on and on and it keeps being relevant".
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With neither leader budging, the conflict escalated over the weekend , leading to fears that the government would collapse. The CSU fears electoral disaster in upcoming regional elections.
As he led Corden through the home (even sitting down at the piano to sing "When I'm 64"), he told Corden how his father had critiqued "She Loves You", suggesting they replace the "yeah, yeah, yeahs" with "yes, yes, yes".
Calling on Paul, the chat show host quoted The Beatles', singing, "I need somebody, not just anybody". "And it keeps being relevant".
Paul directed James to the road he immortalized in song, Penny Lane, whose famous sign they autographed. I've never heard that. "And I remember them playing that".
Later, McCartney and his band surprised a small group of locals at Liverpool's Philharmonic Pub with a 13-song set that included "A Hard Day's Night", "Back in the U.S.S.R" and his new single, "Come On To Me".
But the greatest moment of all comes right at the end - where he's seen performing a surprise gig to a select crowd in a Liverpool pub.