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Mariah Carey - Though she did get weight-loss surgery after having her twins, and perhaps became a slightly bigger diva, not much has changed.

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Keanu Reeves - Keanu Reeves is immortal, and we have the proof.

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Susan Sarandon - When you find a hairstyle that works, you keep it!

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Leonardo DiCaprio - Perhaps his secret to staying young is splurging on Vitamin C showers...

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Cate Blanchett - The Australian actress looks sharper than ever. 

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Robert Downey Jr. - The actor clearly knows the color palette that works for him, but the playful shades are a nice touch!

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Jennifer Aniston - She might have loosened up those curls, but there's no hiding that this 'Friends' actress is most definitely a vampire.

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Jack Nicholson - You thought it first, not us. He's 83 years old!

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Julia Roberts - Roberts went from 'Pretty Woman' to femme fatale.

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Dermot Mulroney - Time has been kind to this rom-com/sitcom fixture.

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Winona Ryder - Not even 20 years could make this actress look less like a young doe caught off-guard. 

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Eddie Murphy - Spot the difference! Hint: there is none.

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Annette Bening - She's now 62 years old, and she's the kind of star who isn't afraid to actually look her age.

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Brendan Fraser - The actor revealed that the reason he disappeared from the spotlight for years was because of his stunt work from the 'Mummy' series, requiring many surgeries over the course of seven years.

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Cameron Diaz - Twenty years and many, many boyfriends later, Diaz could probably still hop right back in that dress from 'The Mask.'

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Ashley Judd - The American actress became deeply involved in political activism, but all that hard work barely shows! 

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Ashton Kutcher - It seems this actor will always have that boyish charm to him. 

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Drew Barrymore - She's moved into a brighter color palette, but Barrymore has remained quintessentially herself all these years, which is a feat in Hollywood. 

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Joey Lawrence - The '90s heartthrob ditched the luscious waves and opts for a closer cut these days.

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Jodie Foster - She almost even looks better all these years later! 

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John Travolta - What you're seeing is Travolta more than two decades after 'Grease,' as compared him now at age 66!

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Pamela Anderson - This 'Baywatch' queen probably has her healthy diet to thank for her youthful skin. Can you believe she's 53 years old?

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Will Smith - The Fresh Prince of Bel-Air is somehow even more influential now than he was when he wore neon tracksuits. He's also smiling way bigger lately.

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Meg Ryan - 'You've Got Mail' had its 20th anniversary in 2018, but somehow Ryan still looks like the quirky, spirited rom-com characters she played so well.

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Madonna - Somehow Madge looks younger than she did all those years ago...

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Matthew Perry - Doesn't he look just as capable of delivering a sarcastic remark? Once a Chandler, always a Chandler.

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Brad Pitt - Will Brad Pitt ever start looking unattractive? It's no wonder his girlfriends want to look like him.

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Uma Thurman - Wondering where this famed '90s actress has been? She's probably been perfecting her secret anti-aging potion.

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Courtney Love - This grunge goddess has taught us that you never need to sacrifice your style for anyone, or at any age.

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Bill Cosby - Sexual misconduct will do this to a person.

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Sheryl Crow - After all these years, from getting engaged to Lance Armstrong to being diagnosed with breast cancer and adopting children, Crow has stayed in fantastic shape.

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Janet Jackson - Serving looks for over three decades, this 54-year-old doesn't quit!

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Elle Macpherson - The Australian model is more frequently spotted in big shades and floppy hats as of late, but she's got nothing to hide.

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Claire Danes - The actress is only 41 years old now, which means she was just barely an adult two decades ago. Still, she's kept that classic beauty about her.

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Gabrielle Union -

She's an actor, author, and activist who also happens to be part of a sports-star power couple, and every year it seems Union gets younger.

See also:  Celebs who've been fired from major movie and TV show roles 

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