24 celebrities who refuse to age

Getty/Evan Agostini; Michael Loccisano

We may never know why certain celebrities seem immune to the slow forward march of aging. All we can do is admire their mind-boggling youthfulness from afar.

Here are 24 famous men and women whose looks have barely changed in the past decade or so.

Paul Rudd, now 47, is famous for his youthful looks.

Getty/George De Sota; Andrew TothJennifer Lopez is also 47, but looks like she's barely aged in the past 15 years.

Getty/Carlos Alvarez; Alberto E. Rodriguez

Here's a look inside her newly purchased $28 million mansion.

Actress Halle Berry turned 50 this year.

Getty/Frederick M. Brown; John SciulliJared Leto doesn't look a day over 25. He's actually 44.

Getty/Frederick M. Brown; Neilson Barnard

Here's how he transformed from art-school dropout into superhero movie star.

Mario Lopez is 43 but looks just as young as he did on "Saved By The Bell."

Getty/Frederick M. Brown; Alberto E. RodriguezSandra Bullock definitely doesn't look 52.

Getty/Lawrence Lucier; Christopher Polk

Bullock is part of the all-female cast of the highly anticipated upcoming "Ocean's 8" film.

Singer Pharrell Williams, 43, is another celeb who's well-known for his ageless face.

Getty/Evan Agostini; Ethan MillerHow could Eva Mendes look the same in two photos taken 13 years apart?!

Getty/Evan Agostini; Michael Loccisano

Getty/Evan Agostini; Michael LoccisanoGabrielle Union is radiant at age 44.

Getty/Chris Weeks; John PhillipsWilliam Shatner almost looks younger now than he did in the early 2000s. He's currently 85 years old.

Getty/J. Emilio Flores; Matt WinkelmeyerGwen Stefani was just 22 when her band No Doubt got a record deal. She's still performing today at age 47.

Getty/Chris Weeks; Charley GallayJennifer Aniston might look even younger today, at 47, than she did while starring on "Friends."

Getty/Diane Freed; Frederick M. BrownIt's hard to believe that Elijah Wood is 35 years old.

Getty/Sion Touhig; Frazer Harrison Wood's "Lord of the Rings" cast mate, Liv Tyler, has also barely aged. She's now 39.

Getty/Sion Touhig; Theo WargoReese Witherspoon, 40, could still pass as her old character Elle Woods.

Getty/Kevin Winter; Theo Wargo

Witherspoon and her daughter look almost scarily alike — check out photos of them right here.

Christy Turlington rose to prominence as a supermodel in the 1980s and 1990s. Today, she's 47 years old.

Getty/George De Sota; Rabbani and Solimone PhotographyRob Lowe, 52, has recently updated his hair color — but not much else has changed.

Getty/Kevin Winter; Matt WinkelmeyerPeople love to lambast Gwyneth Paltrow's infamously strict diet. Then again, maybe it's the secret to the 44-year-old's youthful glow.

Getty/Vince Bucci; Cindy Ord

Here are seven terrible health tips from Paltrow herself.

Seems impossible, but"Full House" heartthrob John Stamos is 53 years old.

Getty/Kevin Winter; Matt WinkelmeyerActor Taye Diggs made the leap from stage to screen but never seemed to age in the process. He's currently 45 years old.

Getty/Kevin Winter; Kevork DjansezianOwen Wilson, 48, never lost his boyish looks.

Getty/Sean Gallup; Frazer HarrisonKate Winslet (of "Titanic" fame) looks beautiful at 41.

Getty/Sion Touhig; Cindy OrdIf it weren't for those few white beard hairs, it'd be tough to guess that Keanu Reeves is 52.

Getty/Staff; Ethan Miller

Reeves is currently staging a big comeback — check out the trailer for his "John Wick" sequel coming out next year.

And Dame Helen Mirren is still effortlessly glamorous at 71.

Getty/Kevin Winter; Jamie McCarthy

Here are 15 other reasons why she's an absolute boss.

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