Kara DioGuardi's publicist says the former "American Idol" judge became a first-time mother after her gestational surrogate gave birth to her son.
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Songwriter DioGuardi married contractor Mike McCuddy in 2009.
People.com said DioGuardi, 42, has a history of miscarriages and failed fertility attempts.
"She's given us an incredible gift," DioGuardi recently told the celebrity magazine of the surrogate.
