Celebrities are renowned for having their glam squad at the ready for their biggest red carpet moments, but before they found fame, many of today's A-listers looked very different.
Whether it was Pamela Anderson before Baywatch, or Demi Moore in her soap days era, these stars have undergone major transformations.
Take a walk down memory lane with HELLO! and see your favorite celeb pre-fame.
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© GettyDemi Moore
Demi, who is nominated for her role in The Substance, made her screen debut as a teenager in 1981. Here she is in a promotional photo for General Hospital.
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© Getty ImagesHarrison Ford
Harrison, who was nominated at the SAG Awards for his role in Shrinking, is pictured above with Camilla Sparv on the set of the 1966 movie Dead Heat on A Merry Go Round, his screen debut.
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© Alamy Stock PhotoTimothée Chalamet
Timothée pictured in 2009, the same year he made his screen debut on Law & Order, on the set of Royal Pains.
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© Alamy Stock PhotoKieran Culkin
Like his brother Macaulay Culkin, Kieran started his career as a child star, and had a cameo on his classic movie Home Alone in 1990.
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© Alamy Stock PhotoRalph Fiennes
Ralph made his screen debut in 1990, starring as T. E. Lawrence in the British television film A Dangerous Man: Lawrence After Arabia.
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© Getty ImagesPamela Anderson
Pamela was "discovered" in 1989 when she attended a BC Lions Canadian Football League game in Vancouver, and was displayed on the jumbotron. Her screen debut came the following year in the sitcom Charles in Charge, though her most famous early role is certainly Baywatch.
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© GettySelena Gomez
Before becoming a Disney Channel darling, Selena made her screen debut in 2002 on Barney & Friends. Above she appears in her most famous early role, as Alex Russo on Wizards of Waverly Place.
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© Getty ImagesAriana Grande
Similar to Selena, Ariana first established herself in the industry over at rival kids' network Nickelodeon, as Cat Valentine in Victorious.
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© GettyJamie Lee Curtis
Jamie followed in the footsteps of her parents, Tony Curtis and "Scream Queen" Janet Leigh, and made her film debut as a Scream Queen herself in 1978's Halloween.
