On December 29, Matthew confirmed the news via his Twitter, and gave all the baby details!

"Camila (@iamcamilaalves) gave birth to our third child yesterday morning. Our son, Livingston Alves McConaughey was born at 7:43am on 12.28.12. He greeted the world at 9lbs. and 21 inches. Bless up and thank you for your well wishes. Happy New year, and just keep livin, Camila and Matthew McConaughey."

He may be personally shrinking in size, but his clan just keeps expanding -- his wife Camila Alves just gave birth to the couple's third child!

TMZ reports that Matthew, 43, and his stunning Brazilian bride, 30, welcomed their new addition in Austin, Texas on Friday. 

No details have officially been released yet.

The pair has been together since 2006, and tied the knot in June of this year. They have two children: son Levi is 4, and daughter Vida is 2.

Congratulations to the family!

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