Frankie Jonas is actually that much younger than the rest of the Jonas brothers.
There are tons of famous siblings we see all the time — but if you’ve ever stopped and looked at their ages, you might be a little surprised at just how far apart they actually are.
Here are some celebrity siblings with age gaps that might be a little bigger than you expected:
Kim Kardashian and Kylie Jenner have a 17-year age difference.
Kim, the second oldest of the Kar Jenner clan, is currently 41 years old. And Kylie, the youngest, is 24 (25 in August). I knew they had an age difference, but I didn’t know it was 17 years.
Now let’s include Kourtney, the eldest of the siblings, at 43. She and Kylie have a 19-year age difference.
Scott Eastwood and Kyle Eastwood have an 18 year age difference.
Scott is 36 and Kyle is 54.
Nicole Richie and Sofia Richie have a 17 year age difference.
Nicole is 40 and Sofia is 23.
Tracee Ellis Ross and Evan Ross have a 16-year age difference.
Tracee is 49 and Evan is 33.
Alexander Skarsgård and Bill Skarsgård have an age difference of 14 years.
Alexander is 45 and Bill is 31.
Kevin Jonas, Jonas’ eldest brother, and Frankie Jonas, the youngest, have an age difference of 13 years.
Kevin is 34 and Frankie is 21. And apparently they are now co-hosting a new competitive show titled claim to fame.
But of course we can’t forget those old days!
Brooklyn Beckham and Harper Beckham have a 12-year age difference.
Brooklyn, the oldest Beckham child, is 23 and Harper, the youngest, is 11.
Rosanna Arquette and David Arquette have a 12-year age difference.
Rosanna is 62 and David is 50.
Chloë Grace Moretz and Trevor Duke Moretz have an almost 11-year age difference.
Chloë is 25 and Trevor – who has acted in films like kick ass 2 — is 35 (goes to 36).
Ariana Grande and Frankie Grande have a 10-year age difference.
Ariana is 29 and Frankie is 39.
Toni Braxton and Tamar Braxton also have almost 10 years age difference.
Toni is 54 (going to 55!) and Tamar is 45.
Oliver Hudson and Wyatt Russell are also almost a decade apart.
Oliver is 45 (46 in September) and Wyatt is 36.
Demi Lovato and Madison De La Garza have a nine-year age difference.
Demi is currently 29 and Madison is 20. And here they are back in 2010 during those Disney days. SO. LONG. BEFORE.
Jesse Eisenberg and Hallie Eisenberg also have a nine-year age difference.
Jesse is 38 (going to 39) and Hallie is 30.
And here’s Jesse and Hallie at the 1999 premiere for Two hundred year old man, where Hallie played the young “Little Miss” Amanda Martin. So pretty!!!
Miley Cryus and Noah Cyrus have an almost eight-year age difference.
Miley is 29 (30 in November) and Noah is 22. When Miley first auditioned Hannah Montana at 11, Noah was just a little boy!
Trey Smith and Willow Smith have an eight-year age difference.
Trey – Smith’s eldest child – is 29 and Willow, the youngest, is 21.
Beau Bridges and Jeff Bridges also have an eight-year age difference.
Jeff is 72 and Beau is 80.
Twins Tia and Tamera Mowry are eight years older than their brother Tahj Mowry.
Tia and Tamera are 44 and Tahj is 36.
And finally, Chris Hemsworth and Liam Hemsworth have an almost seven-year age difference.
Chris is 38 (rising to 39) and Liam is 32. Oh, and the oldest Hemsworth brother, Luke, is 40 (rising to 41). Record everything.
Did any of these age differences between siblings surprise you when you first discovered them? Let us know in the comments below!