Record producer Sir George Martin, known as the “Fifth Beatle”, has died, the BBC reports.
Breaking the news on Twitter, Beatles drummer Starr, 75, said: “God bless George Martin peace and love to Judy and his family love Ringo and Barbara George will be missed.”
In a career spanning five decades, Sir George, who was 90, signed the Beatles and produced more than 700 records.
He worked with artists including Gerry and the Pacemakers, Shirley Bassey and Cilla Black.