Vince Vaughn is playing his most important role yet: dad. The actor's wife, Kyla Weber, gave birth to a daughter, Locklyn Kyla Vaughn, on Saturday in Chicago, the first child for both.

"Both of them couldn't be happier to welcome their sweet little girl into their family!" a friend of the couple's told People.

Vaughn married Weber, a Canadian real estate agent, in January 2010, and announced her pregnancy in July. He told reporters last year, "It's the first time that I really want to have kids. I've been very fortunate in my career, and my life has been about that for so long that you get bored of it. You're ready for your life to be about other people and other things."

The actor stars with Kevin James in the comedy The Dilemma, which will be released on Jan. 14, 2011. —ISHITA SINGH

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