Sean Ono Lennon, the son of John Lennon and Yoko Ono, has welcomed his first child.

The 50-year-old and his partner, Charlotte Kemp Muhl, 39, announced the birth of their son Aurelius in a social media post.

Ono Lennon wrote: “Okay so… Charlotte and I would like to announce that we have indeed created a Human Bean! His name is, Aurelius! Thank you!”

The couple also posted a photo of themselves holding the infant.

Ono Lennon shared an additional photo of Kemp Muhl in a hospital bed after giving birth and wrote: “Baby Momma!”

Kemp Muhl, a musician and model, also shared several snaps of herself with the baby and wrote: “We made a human! Am convinced DNA is agentic alien quaternary code.

“The sleep deprivation only adds to the surrealism… Burping technique tips welcome.

“Been playing him Aphex Twin and Stravinsky. Meconium is crazy.”

Ono Lennon and Kemp Muhl met at Coachella in 2005 and have worked on several musical projects together, including The Ghost Of A Saber Tooth Tiger.

Ono Lennon has been a member of several bands throughout his career, including Cibo Matto, The Claypool Lennon Delirium and his parents’ group, Plastic Ono Band.

He has also released three solo albums: Into The Sun (1998), Friendly Fire (2006) and Asterisms (2024).

John Lennon married Ono, his second wife, in 1969 and told The Beatles he was quitting the group later that same year.

The couple famously used their honeymoon as a bed-in Vietnam War peace protest at the Amsterdam Hilton Hotel in 1969, before repeating the stunt at the Queen Elizabeth Hotel in Montreal, where Lennon wrote and recorded Give Peace A Chance.

After the break-up of The Beatles in 1970, Lennon released 11 studio albums under his own name, with Ono, and with the Plastic Ono Band.

Lennon was shot and killed by Mark David Chapman in December 1980.