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The Persuasions are an American a cappella group that began singing together in Brooklyn, New York in the mid-1960s.
The Persuasions were formed in Brooklyn in 1962, singing a cappella under corner streetlights and in subway corridors. Their style combined gospel, soul, early rock and jazz into melodic five-part harmonies. Since being discovered by Frank Zappa, The Persuasions have recorded 23 albums to date.
en.wikipedia : The Persuasions