Celebs who will make you feel old

By Lisa Respers France, CNN

Updated 7:55 AM ET, Mon July 13, 2015
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Believe it or not, Harrison Ford turns 73 on Monday, July 13. Whether he's starring in a film or smooching "Star Wars" co-star Carrie Fisher at Comic-Con, the man seems ageless. Check out these celebs who will make you ask, "How are they (fill in the blank) years old now?!?" Richard Shotwell/Invision/AP
Rock on, Debbie Harry. The youthful lead singer of Blondie turned 70 on July 1. Larry Busacca/Getty Images
Say what now? Former MTV journalist Kurt Loder turned 70 on May 5. Yes, you read that right. He's 70. Paul Bruinooge/AP
Given how immature he comes across as Sheldon Cooper on "The Big Bang Theory," it is kind of hard to believe that Jim Parsons is actually 42. Jason Merritt/Getty Images
Remember "little" Elijah Wood when he starred in "Avalon" and "Radio Flyer"? Sure, we've watched him grow up (and he was an adult in the "Lord of The Rings" films), but we still need you to grasp that he is 34 years old. Daniel Boczarski/Getty Images
Brad Pitt. Actor, producer, husband, dad. Once that hot guy from "Thelma & Louise." Now that hot guy who is 51 years old. Mark Davis/Getty Images
Why do we keep thinking Gwen Stefani of No Doubt is like 25? Add 20 years to that. Richard Chapin Downs Jr./Getty Images
It would be easier to believe that Jared Leto is 43 if he would actually age. Pascal Le Segretain/Getty Images
Weren't we just watching a seemingly high-school aged Seth Green in "Buffy the Vampire Slayer"? Or a little Seth Green in "Radio Days"? And now he's 41. Ben Gabbe/Getty Images/Nickelodeon
Another "Buffy the Vampire Slayer" alum, Alyson Hannigan, plays younger than she is. Hannigan is 41. Frederick M. Brown/Getty Images
As far as we are concerned Prince is ageless thanks to -- we are certain -- his frequent dips in Lake Minnetonka. He turned 57 on June 7. Kevork Djansezian/Getty Images
Christina Ricci went from child star to much darker roles as an adult, with films such as "Prozac Nation" and "Monster." She's 35. Jamie McCarthy/Getty Images
It's been more than 25 years since Dylan McDermott had a role in the film "Steel Magnolias." He makes 53 look good. Grant Lamos IV/Getty Images
Ben Savage went from a kid in "Boy Meets World" to the dad in "Girl Meets World." He's 34. Rob Kim/Getty Images
With all the talk about the "Full House" reboot we couldn't help but think of Lori Loughlin, who played everyone's favorite aunt, Becky. She turns 50 on July 28. Charley Gallay/Getty Images
Rob Lowe is 51. We repeat, Rob Lowe is 51. Frazer Harrison/Getty Images
To some fans, Stacey Dash will always be bestie Dionne from the 1995 film "Clueless." But she was already an adult when that movie came out, and she is now 48. Theo Wargo/Getty Images
Alexis Bledel from "Gilmore Girls" will be 34 in September. Rob Kim/Getty Images
Luke Perry will always be our small-screen version of James Dean, even though he's 48. Alberto E. Rodriguez/Getty Images
Yes, Anna Chlumsky is all grown up on "Veep," but she still makes our heart ache in "My Girl." Of course, "My Girl" came out in 1991. Chlumsky is 34. Jamie McCarthy/Getty Images
It seems like only yesterday Tom Cruise was sliding across the living room floor in his underwear and socks in "Risky Business." That was some time ago, though. He's now 53. Michael Buckner/Getty Images