“The "four angels" were the Beatles, whom Manson considered ""leaders, spokesmen, prophets," according to Gregg. The line "And he opened the bottomless pit...And there came out of the smoke locusts upon the earth; and unto them was given power..." was still another reference to the English group, Gregg said. Locusts - Beatles - one and the same. "Their faces were as the faces of men," yet "they had hair as the hair of women." An obvious reference to the long-haired musicians. Out of the mouths of the four angles "issued fire and brimstone." Gregg: "This referred to the spoken words, the lyrics of the Beatles' songs, the power that came out of their mouths.”
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Vincent Bugliosi,
Helter Skelter: The True Story of the Manson Murders