TV and Movies·Posted on Nov 12, 202111 Celebs I Was Shocked To Learn Are Over 70, And 11 More I Can't Believe Aren't Even 21 YetAge ain't nothing but a number.by Michele BirdBuzzFeed ContributorLinkFacebookPinterestTwitterMail Age is a funny thing in Hollywood. Tap to play GIF Tap to play GIF Nickelodeon / Via giphy.com Half of the time people play characters that are much younger than them, and the other half it's near impossible to pinpoint how old they really are. Tap to play GIF Tap to play GIF Comedy Central / Via giphy.com We've rounded up 11 celebrities that are surprisingly over age 70, and 11 more that haven't even celebrated their 21st birthday yet. Check it out below: 1. To start, singer-songwriter Billie Eilish already has a thriving music career at the young age of 19: Max Mumby / Getty Images 2. Would you believe me if I told you Goldie Hawn is 75? Because you could never tell with her glow: View this photo on Instagram @goldiehawn / Via instagram.com 3. Millie Bobby Brown is only 17 but made a name for herself early on with her starring role in Stranger Things: Jon Kopaloff / Getty Images 4. While Samuel L. Jackson is all smiles at 72: Paras Griffin / Getty Images for Roadside Attractions 5. Finn Wolfhard is another Stranger Things staple at the age of 18: Emma Mcintyre / Getty Images 6. While Sigourney Weaver is still looking good as ever at 72: Sonia Recchia / Getty Images 7. Just shy of her 21st birthday, Kaia Gerber already rose to fame by modeling and her breakout role on American Horror Story: Dimitrios Kambouris / Getty Images for DKMS 8. While Morgan Freeman continues to captivate audiences at 84: Getty Images / Getty Images for the Critics Choice Association 9. After landing the lead role of Devi on Never Have I Ever, life hasn't been the same since for 19-year-old Maitreyi Ramakrishnan: Monica Schipper / Getty Images for Netflix 10. While Danny Glover is still rocking the big screen at 75: Rodin Eckenroth / Getty Images 11. Noah Schnapp may only be 17 but he's been pretty successful so far starring in Stranger Things: Stephane Cardinale - Corbis / Corbis via Getty Images 12. While Susan Sarandon is another Hollywood icon in the 75 club: Amy Sussman / Getty Images 13. Millicent Simmonds is only 18 but already has been featured in multiple feature films like A Quiet Place and Wonderstruck: Michael Loccisano / Getty Images 14. While most wouldn't believe that Jane Fonda is in her early 80s because she looks so fabulous: Axelle / FilmMagic / Getty Images 15. He may just be getting his driver's license, but Noah Jupe is already a rising star at 16 with roles in The Undoing and A Quiet Place: Santiago Felipe / Getty Images 16. While Dolly Parton is still singing her heart out at 75: Jason Kempin / Getty Images 17. At age 19, Sadie Sink has already made her mark on screen with roles in the Fear Street trilogy and Stranger Things: Arturo Holmes / WireImage / Getty Images 18. From playing Professor X to Captain Picard, Patrick Stewart has been wowing audience well into his 80s: Amanda Edwards / Getty Images 19. With hit singles like "Good 4 U" and "Drivers License," Olivia Rodrigo is already dominating the music scene at the age of 18: Randy Holmes / ABC via Getty Images 20. While Barbra Streisand has spent decades in the limelight and will celebrate her 80th birthday in 2022: Kevin Mazur / Getty Images for BSB 21. Sophia Lillis is only 19 but has no shortage of star power with roles in the It franchise, Sharp Objects, and I Am Not Okay with This: Noam Galai / Getty Images 22. Finally, Julie Andrews has continued to have legendary career throughout her 86 years with roles in Bridgerton, The Sound of Music, and Mary Poppins: Kurt Krieger - Corbis / Corbis via Getty Images Who were you shocked to see on this list? Let us know in the comments!