376) Marilyn Monroe

Marilyn Monroe (Norma Jeane Mortenson, 1926 - 1962). American pin-up, actress and singer. Famous for playing comic "blonde bombshell" characters, she became one of the most popular sex symbols of the 1950s and was emblematic of the era's attitudes towards sexuality. Although she was a top-billed actress for only a decade, her films grossed $200 million by the time of her unexpected death in 1962 (equivalent to $2 billion in 2018). More than half a century later, she continues to be a major popular culture icon.

Mildly controversial. Famously known for being a "blonde bombshell", according to some, and often repeated online, her natural hair colour was dark auburn:
1)  https://www.pelirrojos.org/marilyn-monroe-era-pelirroja.php
2)  https://howtobearedhead.com/9-rare-photos-marilyn-monroe-natural-redhead/

- "She had reddish-brown hair and her figure was not distinguished yet."
https://filmstarfacts.com/2016/04/14/the-loves-in-the-life-of-marilyn-monroe-pt-3/

- "Although her natural hair color was reddish-brown, actress Marilyn Monroe became a legenday blond bombshell..."   https://books.google.it/