Jennifer Garner and Ben Affleck's three-year-old daughter, Violet, became a big sister on Tuesday after the couple announced the arrival of their second child.
A representative for the actress confirmed to People magazine that Jennifer and Ben have had "a healthy baby girl", although further details have yet to be released.
In the last few days the actress – who kept mum about the pregnancy until August when she was five-months pregnant – has stayed close to home, taking Violet on play dates and picking her up from play school in Los Angeles.
The new addition to the Affleck household is the perfect start to the New Year for the brunette beauty and her Smokin Aces actor husband, who have previously said they were "so excited" about adding to their family.
And, according to her Alias co-star and good friend Victor Garber, Jennifer is perfectly suited to being a mummy. "She knows what to do," he told the US publication. "She's probably the best mother I've ever witnessed."