We never cease to be amazed by the Jolie-Pitt kids' transformations every time they step out with one of their famous parents — and this time, youngest son Knox Jolie-Pitt grabbed our attention!

The seven-year-old was spotted with mom Angelina Jolie on Tuesday and big brother Maddox, 14, following a trip to NYC, and we barely recognized the elementary-schooler.

RELATED: Angelina Jolie and Brad Pitt's Daughter Shiloh Turns 10! See How She's Changed Over the Years

Knox has grown so much since the last time we saw him, he could be 10-year-old sister Shiloh's twin. The duo share the same piercing blue eyes as their father, Brad Pitt.

knox jolie-pitt shiloh jolie-pitt splash, getty images
Splash, Getty Images

Knox (left) and Shiloh.

Think that photo is nuts? Scroll through the gallery below to see how much his siblings have changed!