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

▲She almost even looks better all these years later!

▲It seems this actor will always have that boyish charm to him.

▲The actor clearly knows the color palette that works for him, but the playful shades are a nice touch!

▲She's now 65 years old, and she's the kind of star who isn't afraid to actually look her age.

▲When you find a hairstyle that works, you keep it!

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

▲What you're seeing is Travolta more than two decades after 'Grease,' as compared him now at age 69!

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

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

▲'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.

▲Roberts went from 'Pretty Woman' to femme fatale.

▲The Australian actress looks sharper than ever.

▲You thought it first, not us. He's 86 years old!

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

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

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

▲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.

▲Perhaps his secret to staying young is splurging on Vitamin C showers...

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

▲Sexual misconduct will do this to a person.

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

▲Spot the difference! Hint: there is none.

▲Will Brad Pitt ever start looking unattractive?

▲Serving looks for over three decades, this 57-year-old doesn't quit!

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

▲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.

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

▲The actress is only 44 years old now, which means she was just barely an adult two decades ago. Still, she's kept that classic beauty about her.

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

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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.

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

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Of course, celebrities have all the advantages of personal trainers, chefs, stylists, and makeup artists, but there's a certain vivacious quality growing among the aging crowd that is incredibly infectious.

Check out this gallery to see how much, or how scarily little, your favorite celebrity has changed over the last 20 years.

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

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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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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.

▲20-year-review: see how much (or little) your favorite stars have aged