Sir George Martin, the record producer known as the "Fifth Beatle", has died aged 90, Ringo Starr has said on Twitter.
Sir George helped the Beatles achieve global success as the head of the Parlophone record label after hearing their demo tape in 1962.
Abbey Road Studios has expressed its “deepest condolences” to "fifth Beatle" George Martin's family following his death at the age of 90.
It has promised to continue the Beatles producer's "visionary legacy" at the famous music studios.
Abbey Road Studios, a converted Georgian townhouse in St John's Wood, north London, rose to fame in the 1960s as the Beatles recorded almost all of their albums and singles there - even naming their 1969 album Abbey Road.
Paul McCartney's lengthy tribute to "fifth Beatle" George Martin credits the pop impresario with guiding the Fab Four's musical direction.
The man who made the Fab Four has died aged 90.
The Beatles' record producer, Sir George Martin has died at the age of 90, according to Ringo Starr.