Chances are when you were 14 you hadn't already starred in one of the biggest TV shows in the world. Or become a high-fashion model.
But, there's Millie Bobby Brown killing it in every way possible.
Millie has joined Paris Jackson and Lulu Tenney for Calvin Klein's Spring 2018 campaign.
The advertisement is part of the brands #OurFamily campaign, which aims to feature family and unity.
We see it.
Have a look at the awesome video that comes along with it.
The same campaign previously featured that iconic Kardashian shoot when Kylie was completely preggerz.