The French coloratura soprano, born on 29 December 1918 in Yzeures=sur-Creuse  could actually be considered the eighth world wonder.
Her voice was of the soubrette type with a very pleasant girlish timbre and her coloratura technique more than sublime, but there was more: her high notes were extremely high. With her voice she not only reached the F4, but even had the C4 within her reach without any problems, one of the highest notes ever sung by a human voice

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All her high notes in a row, with the description:

She was star of television and radio in the 1950s the fifties,  was a very celebrated radio and TV star in France, but her fame reached far beyond her national borders. She celebrated her greatest triumphs as Lakmé and Leïla (Pearl Fishers), but her Lucia and Olympia were also proverbial.

Mado Robin hits C7 Lucia di Lammermoor:

Gounod’s Mireille is not really a role we would expect from her, but it fits wonderfully well with her childishly naive timbre. I enjoyed these fragments the most, much more than her Lucia and Bellinis.