Congratulations are in order for Leighton Meester, Adam Brody, and Josh Schwartz -- the executive producer of "The OC" and creator of "Gossip Girl" -- because the actors formerly known as Blair Waldorf and Seth Cohen have officially welcomed their first child!

US Weekly broke the news on Thursday (September 24) that Meester gave birth sometime last week, though the couple is yet to reveal a name, a gender, or whether or not Schwartz will be executive producing this baby, too. Meester and Brody wed in 2014 after falling in love on the set of "The Oranges," and they've managed to keep things pretty low-key when it comes to their private life.

Congrats to the (presumably) happy couple! Hopefully, Brody won't feel like Ben McKenzie's surprise baby announcement stole his thunder.

Update: According to TMZ, the baby was not born last week, but on August 4. The outlet also claims that the couple had a girl, named Arlo Day.