One-named pop diva

I believe the answer is:

cher

(Other definitions for cher that I've seen before include "Sonny and - -" , "1987 Best Actress Oscar winner for "Moonstruck"" , "US pop singer" , "US singer/actress - French river/department" , "US singer; dear (Fr.)" .)

I've seen this clue in The New York Times.

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