The chubby cheeks. The playful smiles. You can't deny it: these celebs as babies, toddlers and pre-teens are cuter than cute:
2. Victoria Justice
Netflix and chill? Victoria Justice posted an #FBF with her "first bae" — Fievel from An American Tail.
11. Victoria Justice
Victoria Justice is rocking those sunnies, no?
12. becky G
Can't stop.... smilin'! Becky G looks absolutely adorable in her matching outfit and bow ensemble.
13. Camila Cabello
Nothing beats a strong father/daughter relationship! Seriously, how precious are Camila Cabello and her papa?
14. Lauren Jauregui
15. Gisele Bundchen
This chica was born to rule the runway! Gisele Bündchen looks exactly the same in this throwback.
16. Mario Lopez
Those dimples! Mario Lopez was the cutest little chubster.
17. Naya Rivera
Glee star Naya Rivera has been practicing that smirk for a long time.
18. Enrique Iglesias
Cue the awwws. It's baby Enrique Iglesias!
19. Sara Paxton
Meow! Baby Sara Paxton dressed up as a kitty cat — and looked absolutely adorable.
20. LaLa Anthony
We bet you'll never guess this one: it's LaLa Anthony!