QUIZ: Guess How Old These Actors Really Were When They Played In Iconic Teen Roles
Olivia Newton-John is well known for playing Sandy in Grease, where she and the other primary characters are still in high school. How old was Newton-John in real life, though?

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The English-Australian actress and singer was 28 when filming for Grease began in 1977. Producers were concerned she was too old to play a high school senior, but her screen test with John Travolta helped her land the role.
Olivia Newton-John is well known for playing Sandy in Grease, where she and the other primary characters are still in high school. How old was Newton-John in real life, though?
- 28
- 19
- 31
- 25
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