It's a baby girl for Matt Damon.

Following under the heels of his bestfriend Ben Affleck, actor Matt Damon and wife Luciana are the proud parents of Isabella. According to Damon's rep Jennifer Allen "Mother and Isabella are doing fine,"......Wife Luciana has a daughter Alexia from a previous marriage. When asked about Affleck's influence Damon told PEOPLE magazine last month, "I'm sure I'll be asking him for plenty of diaper advice."...how cute....Source.