McCartney and Lennon sons, James and Sean Ono, team up for new song ‘Primrose Hill’

Last year saw the release of the Beatles’ new song: “Now And Then,” which was promoted as the band’s final single — but there’s a new McCartney/Lennon pairing. Paul and the late Linda McCartney’s son (and youngest offspring), James McCartney has released a new song with his close friend and John Lennon‘s son, Sean Ono Lennon. The pair co-wrote the song, titled “Primrose Hill.”“I had a vision as a child in Scotland, on what was a lovely summer’s day,” James McCartney wrote in a April 2 tweet ahead of the song’s release. “Letting go, I saw my true love and…