IBTimes UK

Former Beatles producer Sir George Martin visits a sculpture of John Lennon in a Havana park named after the musician, October 30, 2002. Martin said Lennon looked "tidier than usual" in the sculpture.

Legendary Beatles music producer Sir George Martin died at the age of 90. Martin was referred to as the "fifth Beatle" and served as producer, collaborator and mentor to John Lennon, Paul McCartney, George Harrison and Ringo Starr.

Martin produced almost all of the Beatles' recordings and also worked with Gerry & the Pacemakers, Jeff Beck, America, Cheap Trick and other acts.