Sisters Of Oz

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Susana Espelleta & Birgit Freud
The Sisters Of Oz is the name Frank Peterson gave to the two female vocalists featured on Sadisfaction. Despite the name, this female duo are not actual sisters. The dark-haired Susana Espelleta sings most of the lead vocals for the verses, while blonde Birgit Freud provides harmony during the choruses. As The Sisters Of Oz, they featured on only one other album: Sarah Brightman's Dive.