Welcome baby boy Comrie!

Hilary Duff on February 9th, 2012 © Milton Ventura/Broadimage 

Hilary Duff and Mike Comrie's son has arrived. Hilary, 24, tweeted, "Welcome to the World Luca Cruz Comrie! Tuesday evening, we became proud parents of a healthy 7 pound 6 ounce beautiful boy." She later continued with "We are overjoyed and feel like the luckiest parents in the world." and "He is surrounded by so much love! Mom and baby are both doing extremely well."

Mike, 31, and Hilary were married on August 10th, 2010. Hilary announced the pregnancy in August.