They did the singing, voice is also an instrument. The TV series lasted 1966 to 68 I believe Kirshner recorded there voices in studio heavily edited it then had them lip sync and fake the instruments for the tv show. Never saw them in a concert I believe my sister wanted to go but Dad put the hammer down.
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"The victim stance is a powerful one. The victim is always morally right, neither responsible nor accountable, and forever entitled to sympathy."
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