8th April 1963: British pop group The Beatles holding their silver disc. Left to right are, Paul McCartney, George Harrison (
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George Martin, the longtime producer for the Beatles, has passed away at the age of 90.

Martin was dubbed the "Fifth Beatle" for signing the band's original lineup in 1962 and producing some of their most iconic hits. He also guided the arrangements on songs like "Yesterday," "Penny Lane" and "Eleanor Rigby."

The London native also produced for Jeff Beck, America, Cheap Trick and Kenny Rogers, among many others. In 1997, Martin produced "Candle in the Wind 1997," Elton John's tribute to Princess Diana.

Ringo Starr confirmed Martin's death on Twitter. "Thank you for all your love and kindness George peace and love xx," the Beatles drummer wrote.

Details of Martin's death are still unknown. Story developing...