(SOUNDBITE OF JAMES MCCARTNEY SONG, "PRIMROSE HILL")
A MARTÍNEZ, HOST:
Good morning, I'm A Martínez. There are dozens of classic Beatles songs credited to the songwriting duo of Lennon and McCartney. Now there's a brand-new song co-written by their sons, Sean Ono Lennon and James McCartney.
(SOUNDBITE OF SONG, "PRIMROSE HILL")
JAMES MCCARTNEY: (Singing) We laid on Primrose Hill, didn't know it still.
MARTÍNEZ: They're each musicians themselves who some fans say sound remarkably like their famous fathers.
It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.
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