Story highlights The pair are both musicians

Lennon has posed with another McCartney kid

(CNN) Hey Jude, John Lennon and Paul McCartney's kids are friends.

Sean Ono Lennon posted a selfie Monday with James McCartney.

Peekaboo... A post shared by Sean Ono Lennon (@sean_ono_lennon) on Aug 13, 2018 at 7:52am PDT

"Peakaboo...," Lennon captioned the photo.

Like their famous dads, the pair are both musicians.

Sean is the son of the late John Lennon and artist Yoko Ono, and James is the son of Paul McCartney and the late Linda McCartney.