Nick and Vanessa Lachey Welcome Son Camden

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"We are incredibly proud to announce the birth of our beautiful baby boy, Camden John Lachey," the couple tell PEOPLE in a statement.

"Born today at 6:54 p.m., he came into this world at 8 lbs., 9 oz. and 21 inches. Love has truly been redefined for both of us."

The couple, who married in July 2011, announced the pregnancy in March. In July, Wipeout host Vanessa, 31, revealed that they were expecting a boy.

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Read more about the meaning of Camden's name at Parents.com's In Name Only blog.

Image: Nick and Vanessa Lachey, via s_bukley / Shutterstock.com