Brangelina's littlest have gotten so big! How cute are 4-year-old Knox and Vivienne?!
No, that's his mini-me, Knox!
This active lady might just follow in her mom's footsteps as an action hero!
Of course, Knox and Viv have the twin thing going on, but they're also close with their older siblings Maddox, Pax, Zahara and Shiloh.
Vivienne's red nails match her dress. Darling!
Vivienne appears to be enjoying the fresh air.
Knox has an adorable, shaggy hairdo quite similar to his famous father's.
NEXT GALLERY: Brad & Angelina's Family Album