Kevin Costner

On Diaper Duty --

For 5th Time!

5/7/2007 11:59 AM PDT BY TMZ STAFF
TMZ has learned that 52-year-old Kevin Costner and his wife Christine, 33, welcomed a new baby boy into the world on Sunday. We're told Cayden Wyatt Costner weighed 7 lbs., 14 oz. and has dark hair. This is the second Wyatt that Costner has produced.

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Both mother and son are doing well. This is the fifth child for Costner, the first for Christine.

Costner will be a perky 70 when Cayden graduates from high school.