Hilary Duff Posts First Picture of Son

Hilary Duff has posted the first picture of her baby on Twitter. The singer-and-actress shared an image of two-week old son Luca Cruz's feet on the social networking site, saying he has her "favorite little feet."

Hilary - who has Luca with husband Mike Comrie - has also returned to her exercise regime, taking up pilates and leaving her young baby with her mother. "Did a little Pilates today.Felt so good to stretch!Little man had a visit with grandma and did so well! I'm lucky to have my fam so close :)(sic)" she wrote on Twitter.

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Hilary Duff Welcomes Baby Boy

Hilary Duff has given birth to a baby boy.

The singer-and-actress and her husband Mike Comrie welcomed son Luca Cruz Comrie into the world on Tuesday, and the couple are thrilled with the new addition to their family.

"Welcome to the World Luca Cruz Comrie! Tuesday evening, we became proud parents of a healthy 7 pound 6 ounce beautiful boy. We are overjoyed and feel like the luckiest parents in the world," said Hilary, writing on her Twitter page.

Hilary, 24, was thrilled when she found out she was pregnant and admitted she couldn't wait to meet her son: "People keep saying to me, 'Sleep right now. Get your sleep!' I keep saying, 'I just want the baby here! I want to play and I'm ready to see what he looks like.'"

(FYI - You can also follow VIP Breakdown on Twitter.)