Is it just us, or does seeing these celebrity offspring all grown-up make you feel a little bit funny.
A bit like an overfamiliar great-aunt at a family reunion, we definitely had to stop ourselves muttering 'My, haven't you grown' more than once while looking through these pictures.
From Brooklyn Beckham to Matilda's Mara Wilson, check out the 'adults' who were only littl'uns yesterday (at least that's how it feels to us ancients!)
(Images: Rex Features, Instagram)
Lourdes in 2004
Lourdes Leon became a celebrity just as much as her pop-star mother, Madonna, as she accompanied her to fashion shows and travelled around the world. We followed her in photographs in newspapers, but now she's centre of attention on Instagram...
Lourdes in 2014
...Madonna posted a picture of Lourdes, now 17 years old, on the final night of her school's production of A Flea in her Ear on Instagram. She studies at LaGuardia Performing Arts school in Manhattan.
Maddox Jolie-Pitt in 2004
In the early 2000s, a spiky haired Maddox was forever photographed in the arms of Angelina Jolie, but now...
Maddox Jolie-Pitt in 2014
...the teenager is regularly snapped checking-in at airports with the Jolie-Pitt family. He recently walked the red carpet with Angelina Jolie at the Governors Awards where she won a Hersholt Humanitarian Award and said she promised her son she wouldn't embarrass him by crying during her acceptance speech.
Mara Wilson in 1996
She played the sweet little girl in Matilda, Mrs. Doubtfire and the remake of Miracle on 34th Street...
Mara Wilson in 2014
...now, at 26 years old, Mara Wilson is a writer and tweets @MaraWritesStuff.
Brooklyn Beckham in 2003
David and Victoria Beckham's eldest child, allegedly named after the area he was conceived in, was centre of attention in the early 2000s...
Brooklyn Beckham in 2013
...at the age of 15, he's made his modelling debut in Man About Town magazine and accompanied Victoria Beckham to a fashion awards ceremony last year.
Jaden Smith in 2004
Eldest son to Will and Jada Pinkett-Smith, Jaden Smith, has always been a regular on the red carpet, attending premiers of the films his parents starred in...
Jaden Smith in 2014
...now the teenager walks the red carpet for his own films having starred in The Pursuit of Happyness, The Karate Kid and After Earth.
Ramona Marquez in 2009
We all now her as the cheeky blonde Karen Brockman in BBC TV series Outnumbered...
Ramona Marquez in 2014
...and now she's switched her goldilocks curls for a slick brunette bob.
Ava Phillippe in 2004
Reese Witherspoon and Ryan Phillippe's daughter, Ava, inherited her mother's blonde locks...
Ava Phillippe in 2014
...now, at 14 years old Ava looks the spitting image of Witherspoon.
Dakota Fanning in 2002
From playing a young Reese Witherspoon in Sweet Home Alabama to a small stint in Friends (the one where Monica and Chandler are buying a house), it would seem Dakota has been acting all her life...
Dakota Fanning in 2014
...But she's making way with the fashion crowd, having sat on the front row at the Rodarte, Proenza Schouler and Marc Jacobs fashion shows.
Rumer Willis in 1996
The oldest daughter of Bruce Willis and Demi Moore attended her first red carpet event at the premiere of her mother's film Striptease, and thereafter walked many more with her Hollywood family...
Rumer Willis in 2014
...now, aged 25, she's starred in popular television shows from 90210 to Hawaii Five-0.
Frankie Muniz in 2000
A regular on American children's television, Frankie Muniz played Malcolm in Malcolm in the Middle and was the voice of Chester McBadbat in cartoon The Fairly OddParents...
Frankie Muniz in 2012
...since his acting career, the actor has become a race car driver.