Even the world’s most glamorous people had to go through the pains and gains of teen years.
Read on to see what these 18 stars were up to — from goofing off with friends to hitting the field in uniform — before they started dazzling us on red carpets.
Katie Holmes was a proud theater geek.
A post shared by Katie Holmes (@katieholmes212) on Jul 28, 2016 at 8:51am PDT
Lupita Nyong’o rocked a natural eyebrow look.
A post shared by Lupita Nyong'o (@lupitanyongo) on Jun 12, 2015 at 1:36am PDT
Hugh Jackman had no qualms about donning a kilt.
A post shared by Hugh Jackman (@thehughjackman) on Feb 11, 2016 at 4:21am PST
Ewan McGregor proudly flaunted his stonewashed jeans and new car.
The day I bought my first car. I was 16. I'd washed dishes for 2 years and saved the £500 she cost. It seams she's gone now old ESL380V i can't find her. If you ever come across her let me know. Cheers. #stonewashed
A post shared by Ewan McGregor (@mcgregor_ewan) on Oct 4, 2015 at 7:06pm PDT
Heidi Klum had an early affinity for glam looks.
Blake lively and her cheer squad always had each other’s backs.
A post shared by Blake Lively (@blakelively) on Oct 20, 2016 at 8:16am PDT
Diane Kruger and her bro were all about the smize.
A post shared by Diane Kruger (@dianekruger) on Jan 25, 2016 at 4:52am PST
Jerry Seinfeld’s long locks were on display in his passport photo.
A post shared by Jerry Seinfeld (@jerryseinfeld) on Apr 16, 2015 at 9:20am PDT
Lena Dunham appreciated the benefits of aquatic undergarments.
A post shared by Lena Dunham (@lenadunham) on Jun 1, 2017 at 12:41pm PDT
Kourtney and Kim Kardashian were all about hand signs.
A post shared by Kim Kardashian West (@kimkardashian) on Apr 10, 2017 at 6:33pm PDT
Kim Zolciak-Biermann got all dolled-up for dance recitals.
A post shared by Kim Zolciak-Biermann (@kimzolciakbiermann) on Jan 2, 2017 at 3:32pm PST
Chrissy Teigen lived up the pom-pom life.
Chris Pratt broke out the hair gel for picture day.
Before selfies, this was what 13 looked like. #Being13 looks like this now: cnn.com/being13 So proud of my brother in law, friend and hunting partner Bob Faris for his involvement in this great project. Check it out!!
A post shared by chris pratt (@prattprattpratt) on Oct 5, 2015 at 5:19am PDT
Katy Perry latched on to the bedazzled trend.
A post shared by KATY PERRY (@katyperry) on Jul 3, 2014 at 11:09am PDT
Josh Duhamel wasn’t afraid of helmet head.
A post shared by Josh Duhamel (@joshduhamel) on Sep 5, 2013 at 11:37am PDT
Rihanna was a grandmother’s girl.
Jeremy Renner was thinking pink at prom.