Klein was also held responsible by many for making contributions to the demise of The Beatles after his failure to acquire control of copyrights on their behalf, reports the BBC. He once told Playboy magazine: "Don't talk to me about ethics. Every man makes his own. It's like a war."
Klein said he had been roped in by John Lennon in 1969 since the Beatles wanted "a real shark - someone to keep the other sharks away" and protect the interests of the band. By the time he extracted a lucrative recording deal for The Beatles, the four had already gone off the talking terms, with the group splitting in 1970.
Klein funeral is set to take place in New York on July 7.