Congratulations are in order for Leighton Meester and Adam Brody, who, Us Weekly exclusively reports, welcomed their first child last week. Reps have not confirmed a name or sex for the baby just yet, but we’ll keep you posted! We’re thrilled for the new mom and dad, who made TV fans of Gossip Girl and The O.C. very happy when they began dating and got married last year. We have a feeling this is going to be one stylish baby! Click here to shop the darling children's clothing line we love (that also makes clothing for parents, too, so you can match with bebé in a chic way).