Grace Wahlberg: Mark Wahlberg's New Daughter!

Mark Wahlberg and his wife Rhea Durham welcomed daughter Grace Margaret Wahlberg at 6:35PM on Monday (January 11) at Cedars Sinai Medical Center in Los Angeles.

“Mark was in the delivery room with Rhea,” a source tells Star. “And he cheered her on all the way.”

Baby Margaret joins older siblings Ella, 6, Michael, 4 and Brendan, 1. The Wahlbergs married last August in Beverly Hills. Congrats to the happy family!

Mark‘s new film The Lovely Bones opens this Friday (January 15).