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We're starting the gallery off with little Leo! He's pictured here in 1990. At this point in his career, Leo had a role in the sitcom Growing Pains... who knew he'd become a household name in Hollywood!
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Salma Hayek appeared on The Sinbad Show from 1993-1994, which was one of her first American TV appearances! Here, she is around age 27. The beautiful Mexican-American actress is now in her 50's and still gorgeous.
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Angelina Jolie on the red carpet with her father Jon Voight at the age of 16! She's still youthful and stunning today in her 40's!
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How sweet! Hayden Panettiere posing on the red carpet at just 12 years old!
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Madonna in 1984 as she started to become an international name!
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Wow! A young Cameron Diaz is absolutely stunning!
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That's so Raven! Her style was always fun even at the age of 16!
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Ah, the legendary Mickey Mouse Club, where pretty much ALL of the stars are now extremely famous. From clockwise upper center, we have Nikki DeLoach, Justin Timberlake, Christina Aguilera, Britney Spears, Ryan Gosling, T.J. Fantini, Tate Lynche. What a club!
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Yes, this is Catherine Zeta-Jones back in 1991! She was just a young 22-year-old then. Now, the award-winning actress is in her 50's and has won an Oscar!RELATED: Catherine Zeta-Jones and Michael Douglas: Best Pictures Through The Years
These stars looked completely different when they were younger! It's so fun when stars post throwback pictures on their social media for us to enjoy.
You won't want to miss these stars as teens! We can't believe how ageless many of them are even today in their 50's!
Check out the gallery for more!