Natalie Portman's Son Aleph -- Look How Big He's Gotten!

Natalie Portman's son is growing up so fast!

We haven't seen much of little Aleph since the 30-year-old "Black Swan" star and choreographer husband Benjamin Millepied welcomed him last year ... but boy has he gotten big.

Natalie and her adorable son were spotted outside a market in Orange County on Wednesday, where Aleph was rocking overalls and a full head of hair!

Just look at those cheeks ... so cute.

Want even more cuteness? Check out our gallery of adorable celebrity kids above.

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