19 Age-Defying Stars
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John Stamos
Age in first photo: 20
Age in second photo: 48
Verdict: He's Uncle Jesse; of course he's ''Forever'' young.
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Jennifer Garner
Age in first photo: 25
Age in second photo: 40
Verdict: Yeah, the Neutrogena's working.
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Prince
Age in first photo: 27
Age in second photo: 49
Verdict: There must be something in the Purple Rain.
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Halle Berry
Age in first photo: 24
Age in second photo: 44
Verdict: As Catwoman, she had nine lives. In real life, she may have even more.
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Jared Leto
Age in first photo: 23?
Age in second photo: 39?
Verdict: And this is why we've still got a crush on Jordan Catalano.
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Stacey Dash
Age in first photo: 23
Age in second photo: 43
Verdict: Clueless writer/director Amy Heckerling's latest movie is about a pair of eternally hot, BFF bloodsuckers — and it's not a stretch to think that she might have been inspired by Dash's supernaturally unlined face.
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Kevin Bacon
Age in first photo: 27
Age in second photo: 54
Verdict: Maybe the lower your Bacon Number, the closer you are to immortality. Bacon's number, naturally, is the lowest of them all.
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Lucy Liu
Age in first photo: 22
Age in second photo: 43
Verdict: Of course she's ageless -- she's an Angel, after all.
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Tom Cruise
Age in first photo: 26
Age in second photo: 49
Verdict: The guy must be doing something right.
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Bianca Lawson
Age in first photo: 21?
Age in second photo: Five days shy of 33?
Verdict: It takes genes of steel to pull off playing a teenager for 20 years — but Pretty Little Liars actress Lawson has been doing it since her Saved by the Bell: The New Class days.
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Diane Lane
Age in first photo: 19
Age in second photo: 46 (one week before her 47th birthday)
Verdict: Did she suck just a little life out of Richard Gere while filming Unfaithful?
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Keanu Reeves
Age in first photo: 26
Age in second photo: 48
Verdict: Whoa.
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Marisa Tomei
Age in first photo: 28?
Age in second photo: 48?
Verdict: Her character in My Cousin Vinny is named Mona Lisa — fitting, since Tomei's face has proven as timeless as da Vinci's portrait.
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Will Smith
Age in first photo: 25
Age in second photo: 44
Verdict: Theory: Men In Black 3 was real, and the man we all think is Will Smith is actually Agent J's time-traveling younger self. It'd make as much sense as that ending.
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Gwen Stefani
Age in first photo: 26
Age in second photo: 42
Verdict: She's really a well-dressed ageless goddess, underneath it all.
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Dylan McDermott
Age in first photo: 31
Age in second photo: 50
Verdict: 50 years old?! No way. He's either 35 or 350; there is no middle ground.
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Bernadette Peters
Age in first photo: 48?
Age in second photo: 64
?Verdict: Into the Woods knows what's up: a cow as white as milk, a cape as red as blood, hair as yellow as corn, and slippers as pure as gold are the keys to reversing the aging process.
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Rob Lowe
Age in first photo: 20
Age in second photo: 48
Verdict: He literally stopped getting older after St. Elmo's Fire.
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Paul Rudd
Age in first photo: 29?
Age in second photo: 41?
Verdict: How does the funnyman stay so baby-faced? We're Clueless.