Leighton Meester gave birth to her baby girl seven weeks ago.
The former Gossip Girl and husband Adam Brody were reported to have welcomed their first child into the world recently and it has now emerged little Arlo Day was born on August 4.
According to TMZ, who have obtained a copy of the baby's birth certificate, Arlo was born 12 minutes after midnight at Whittier Hospital in Los Angeles.
The couple tied the knot in a secret ceremony in January 2014 after first meeting on the set of their 2011 film The Oranges.