George Martin, the English record producer best known to be the one who signed the Beatles to a recording contract after every other British record company turned them down, died on Tuesday. He was 90.

The death of George Martin who was known as the “fifth Beatle,” was announced on Twitter on Wednesday morning by the group’s drummer, Ringo Starr.
God bless George Martin peace and love to Judy and his family love Ringo and Barbara George will be missed xxx ?✌️??☮
— #RingoStarr (@ringostarrmusic) March 9, 2016
Prime Minster David Cameron called him “a giant of music”
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
Many music producers think Mr Martin’s reputation as the producer of the Beatles, one of the most popular and influential groups in the history of pop music, helped raise the stature of record production as an independent career, rather than a record label function.
American RockBand Wheatus called him “The master of orchestral pop production”
George Martin has died. IMHO he was the master of orchestral pop production. ?? unmatched.
— wheatus (@wheatus) March 9, 2016
The official Beatles page sent their thoughts and love to his family
RIP Sir George Martin. Our love and thoughts are with his family today. https://t.co/yz2UOqDQvY pic.twitter.com/FEmk64zJND
— The Beatles (@thebeatles) March 9, 2016
Paul McCartney wrote a touching note about the time he had spent with George on his facebook page
I’m so sad to hear the news of the passing of dear George Martin. I have so many wonderful memories of this great man…
Posted by Paul McCartney on Wednesday, 9 March 2016
John Lennon‘s son Sean Lennon posted a photo of Martin on Instagram, along with a message of condolences to Martin’s family
American record producer Quincy Jones bid him a farewell
RIP to my musical brother George Martin. We were friends since 1964, & I am so thankful 4 that gift. Bless u & your precious posse 4ever.❤️Q
— Quincy Jones (@QuincyDJones) March 9, 2016
Americal singer Josh Groban referred to him as a legacy.
Every time I record at abbey road I geek out and play with the mics sir George Martin used. What an ear, what a life, what a legacy.
— josh groban (@joshgroban) March 9, 2016
In 1964 George Martin released Off the Beatle Track album. It was the first of a series of albums by Martin featuring instrumental arrangements of The Beatles” songs.