Paul McCartney and Yoko Ono were among those in attendance at a memorial service in London for late Beatles producer George Martin.

Martin, who passed away on March 8 at the age of 90, was laid to rest in a private family funeral in Wiltshire.

Over 600 mourners attended a memorial service for Martin, dubbed the "fifth Beatle," at St. Martin in the Fields church in Trafalgar Square.

McCartney delivered a eulogy praising Martin's impact on The Beatles' music while comedians Alexander Armstrong and Bernard Cribbins performed at the memorial.

Stella McCartney posted a selfie on Instagram in which her veiled face is half-covered by the order of service booklet.

She writes, "A heart warming service to celebrate a truly great man and his beautiful family."