Actor Mark Wahlberg and his wife Rhea Durham welcomed their fourth child, a healthy baby girl named Margaret Grace at Cedars Sinai Hospital in Los Angeles at 6:35pm on Monday (January 11). [Rhea Durham & Mark Wahlberg Family Photos]

“Mark was in the delivery room with Rhea,” says a source. “And he cheered her on all the way. Rhea was a real trouper, and now they can’t wait to get home and be a big happy family with their four kids.”

The couple, who finally tied the knot last year, already had three beautiful children together: Ella, 6, Michael, 4 and Brendan, 1. Congratulations go out to the whole family!!

Rhea Durham & Mark Wahlberg Wedding Pictures