Sarah Michelle Gellar welcomes baby boy with Freddie Prinze Jr.

Sarah Michelle Gellar and husband Freddie Prinze Jr. are now proud parents to two little ones, having just added a boy to their brood.

"Sarah Michelle and Freddie Prinze Jr. are thrilled to announce that they welcomed a baby son into the world this past week," her rep tells Us Weekly.

The couple's daughter, Charlotte Grace, just turned 3 in September.

"Mother and baby are doing great," her rep adds. "And Charlotte is VERY excited to be a big sister."

The couple, who met while making the 1997 movie "I Know What You Did Last Summer," celebrated their 10th wedding anniversary on Sept. 1.