“Happy to announce that today we are the proud parents of our second daughter, Frankie Barrymore Kopelman,” the second-time parents said in a statement. “Olive has a new little sister, and everyone is healthy and happy!”
Barrymore, 39, was six months pregnant when she married Kopelman in 2012. She gave birth to Olive, now 19 months old, in September of that year.
The Charlie's Angels actress announced her pregnancy late last year, after telling Jay Leno in October that he really wanted Olive to have a sibling.
"I grew up as an only child, and although that really works for some people and for some parents that’s the way they want to do it…I want to be the Griswolds," Barrymore said.