Something about the role of Maddalena in Rigoletto seems to bring out the most extreme behavior in mezzo-sopranos, whether it’s the Brainfart of Herta Glaz or the celebrated Woman on the Verge of a Wardrobe Misfunction corsetry of Isola Jones. But the award for Most Hairpieces Ever Worn at the Same Time must surely go to a relatively unheralded name, Sara Nastos, who is prepared to embody Carmen, Aldonza, Tracy Turnblad or Elizabeth Taylor without so much as a little extra ratting.

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