jennifer gay bishop (16 december 1933 – 17 january 2022), known by her stage name jennifer toye, was a british operatic soprano. she was best known as the principal soprano of the d'oyly carte opera company in the 1950s and 1960s. she played josephine in "h.m.s. pinafore", mabel in "the pirates of penzance" and yum-yum in "the mikado". toye was born in holywell, flintshire, north wales.