Hilary Duff Tweets Photo of Son Luca Looking Totally Adorable

We often see Hilary Duff out with her son, Luca, but the photo she recently Tweeted of her baby boy is absolutely precious! His big eyes stare right up at the camera, and you can see just how much he looks like his mom!

OK! GALLERY: CELEBRITY MOMS WITH SONS: GWEN STEFANI, BRITNEY SPEARS, KOURTNEY KARDASHIAN AND MORE!

The former Lizzie McGuire star is currently working on a new album, but it's obvious that her favorite job these days is being Luca's mom. And with photos like this one, it's easy to see why.

OK! GALLERY: HILARY DUFF SHOWS OFF HER MOMMY CURVES WHILE SHOPPING IN BEVERLY HILLS

"Motherhood is the most incredible thing," Hilary recently told E! News. "It softens you so much. I feel like a big mushy ball." Aww. Keep the pics coming, Hil!