Jared Leto
WENN/Brian To
Jared Leto and Mark Wahlberg are the same age...43. Just let that sink right in.
Ariana Grande
Splash News
Ariana Grande looks like she's the next teenage superstar. Except she's legal, at 21-years-old.
Thomas Brodie Sangster
WENN/Ivan Nikolov
You'd think Jojen on Game of Thrones would be the same age as Brandon Stark, right? Nope. He's 24.
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Tyson Beckford
Splash News
It's no wonder this guy can make his money modeling, he does not age! Bet you thought he was in his 30's, easily, right? No, he's 44.
Margot Robbie
WENN
We can't believe how young Margot Robbie is! She looks so much like Jamie Pressly, we expected them to be close in age. But she's just 24.
Kate Upton
WENN/Andres Otero
Kate Upton is only 22. We're not saying she looks older because of the boobs, but...it's the boobs.
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Sam Smith
WENN
How can he only be 22?! That soulful voice and deep lyrics cannot be coming from someone who isn't even old enough to rent a car in the U.S.!
Adele
Splash News
Adele is 26. Not even a full year older than Taylor Swift. She doesn't seem so young, but maybe she has an old soul.
Paul Rudd
WENN
It has been proven than Paul Rudd has not aged in 15 years. He's 45 now, but we can't wrap our heads around that.
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Jim Parsons
Splash News
Prepare to have your mind blown (spoiler alert!) but Jim Parsons is much older than you thought he was. He's 41.
Jennifer Lopez
Splash News
How is that J.Lo looks younger and better now than when she was in Selena? She's 45, BTW, in case you needed to feel bad about not being as hot as her.
Gwen Stefani
WENN/Dennis Van Tine
A mother of 3, Gwen Stefani looks amazing and timeless, but she is actually 44.
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Hayden Panettiere
WENN
Maybe it's because she's been on TV since she was 15, but how is that Hayden is only 24-years-old? She seems much older than that.
Jennifer Aniston
Splash News
Didn't Friends end just a minute ago (or 10 lonely years)? Well time has flown by and Jen has stayed the same, even though she's 45 now.
Lorde
Splash News
Lorde sings about a lot of things you'd expect someone in their 20's would. But she is only 17-years-old.
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Keanu Reeves
WENN
Keanu Reeves hasn't really aged much since the 90's, so it's hard to think that he's gotten older. But he has and he's 50 now.
Emma Stone
Splash News
Emma Stone is 25, but her world views and kind heart make her seem much more mature than that.
Sandra Bullock
WENN
It feels like Miss Congeniality came out the other day, but it's been 14 years and Sandy B is 50, if you can believe it.
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Carey Mulligan
WENN/Alberto Reyes
Carey Mulligan is one of those actress with such a young face. She looks like she could play a college freshman, when really she's 29.
Sarah Hyland
Splash News
Sarah Hyland is another one on this list that looks like she belongs in high school, but she'll be 24 on November 24th.
Samuel L. Jackson
Splash News
Samuel L. Jackson is older, that much we all knew. But 65?! We were not expecting that one.
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Robert Downey Jr
WENN
Robert Downey Jr. is one of many men on this list that have aged like a fine wine. He looks better now than he did 20 years ago, so we find it hard to believe he's turning 50 next April.
Ellen Page
WENN/Ivan Nikolov
Ellen Page played a pregnant teenager only a few years ago, so she's probably still pretty young, right? No. She's 27.
Halle Berry
Splash News
How has the time passed so quickly that Halle Berry is actually 47?!
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Elijah Wood
WENN
Elijah Wood has looked the same since the early 00's, but has he been aging since then? Yes, he has. He is 33 now.
Bianca Lawson
Splash News
Lawson has been playing a teenager since the mid-90's, on Saved By The Bell: The New Class and Dawson's Creek, and still now plays one, even if she's 35.
Troian Bellisario
Splash News
Troian plays Spencer, a high school senior, on Pretty Little Liars, even though she's 10 years older than her character at 28.
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Alyson Hannigan
Splash News
Alyson Hannigan still has a young face, even though she recently just turned 40.
Jason Earles
Splash News
This former Hannah Montana star is 37, which means he was in his 30's when he kissed Emily Osment (16 at the time) on the show. Yikes.
Johnny Depp
WENN
Johnny Depp hasn't played a teenager in decades, but he still has a youthful face that makes it hard for anyone to understand how he's 51.
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Jason Statham
WENN/Lavinia Fontana
British men don't age. If they did, then Statham would be 47. But since he doesn't age, he's whatever you believe.
Vin Diesel
WENN
Maybe it's a bald thing, but without the hair, it becomes a lot more difficult to believe that Vin Diesel is 47.
Sofia Vergara
WENN/Brian To
Sofia Vergara is what we all strive to look like when we're 42.
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Patrick Stewart
WENN/Ivan Nikolov
Patrick Stewart has been drinking from the fountain of youth. He is 72, as if any of us could comprehend that.
John Stamos
Splash News
John Stamos did a lot better than his Full House male co-stars. We think he looks stellar for 51.
Lori Loughlin
WENN/Nikki Nelson
It must be a couples thing, because Lori's Auny Becky to Stamos's Uncle Jesse, looks just as great as him at 50.
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Stacey Dash
WENN/Brian To
We are Clueless as to how Stacey Dash is 47 but doesn't look it, at all.
Mario Lopez
WENN
Mario Lopez came out of Save By The Bell looking so much better than before, especially for 41.
Andrew Garfield
WENN
Andrew Garfield just played a teenage superhero, but he hasn't been one in 12 years. Because Garfield is 31-years-old.
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Tobey Maguire
WENN
Must be a Spider-Man thing, because Maguire looks a lot younger than he is. Which is 39.