Nikki Cox & Jay Mohr Welcome a Boy

By Julie Jordan and Sara Hammel

Thursday May 05, 2011 04:40 PM EDT

Jay Mohr and Nikki Cox

Dan MacMedan/WireImage

It's a happy Cinco de Mayo for Jay Mohr and Nikki Cox, who welcomed their first child together on Thursday, their rep tells PEOPLE.

The couple's baby boy, Meredith Daniel Mohr, weighed in at 6 lbs. 7 oz.

"We are over the moon, filled with joy and every other clich� new parents use," the couple tells PEOPLE of their bundle of joy. "He's perfect."

Mohr, 40, and Cox, 32, were married in 2006 at the Hotel Bel-Air in Los Angeles.

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