Hilary Duff's little man has a big crush!

The former Disney darling shared a cute photo of her son Luca on Instagram Thursday, writing, "Dreaming of queen Elsa .......(she's his girlfriend)."

In the pic, the 2-year-old is gazing off into the distance, seemingly thinking about the "Frozen" beauty. He's sporting a white tank top and is hanging his arms over the green bars of the jungle gym.

We can't believe how big he's gotten! 

It definitely seems like Duff and her estranged hubby Mike Comrie have maintained a close relationship since announcing their separation earlier this year.

The couple, who married three years ago, recently went to Coachella together, and the exes also spent Valentine's Day on vacation with their families.  

We're still hoping for a reconciliation -- what do you think of Hilary's latest photo? Tell toofab in the comment section below, and click "Launch Gallery" above to see even more cute celebrity kids!

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