Legendary producer, Sir George Martin, who was the man behind most of The Beatles era-defining recordings, has died aged 90.
Sir George, who was the producer and arranger for the band, was a British treasure who signed The Beatles to a label contract when no one else would.
He produced virtually all their songs and introduced arrangements into Yesterday and A Day in the Life.
Beatles drummer Ringo Starr shared the news on Twitter. He said: 'God bless George Martin peace and love to Judy and his family love Ringo and Barbara George will be missed.'
A Universal Music Group spokesperson confirmed Sir George's death, but details are not yet clear.
Thank you for all your love and kindness George peace and love xx???????? pic.twitter.com/um2hRFB7qF— #RingoStarr (@ringostarrmusic) March 9, 2016
Sir George, often called 'the Fifth Beatle', gave the Beatles their first recording contract and produced virtually all of their music.
He was born in London on January 3, 1926, and after leaving the Navy in 1947, he studied piano and oboe.
Major musicians including Neil Finn, Lenny Kravitz and Boy George have joined in sharing their condolences.
Thank you Sir George Martin: the greatest British record producer of all time. We will never stop living in the world you helped create.— Mark Ronson (@MarkRonson) March 9, 2016
Sir George Martin was a giant of music - working with the Fab Four to create the world's most enduring pop music.— David Cameron (@David_Cameron) March 9, 2016
Sir George Martin RIP LG x— Liam Gallagher (@liamgallagher) March 9, 2016
Sir George Martin. Gentleman and legend. R.I.P.— Boy George (@BoyGeorge) March 9, 2016
RIP and thanks George Martin .. his presence is everywhere— neil mullane finn (@NeilFinn) March 9, 2016