Ellen Pompeo and husband Chris Ivery have welcomed their second daughter while staying relatively under the radar with the announcement.

"Sienna May Ivery welcome to the world," Pompeo posted to Instagram on Thursday. "We love you more than words can say." The caption came along with a precious picture of the baby girl.

"Sienna was born via surrogate & I would like to thank my whole @ShondalandTV family for helping us enjoy these first few weeks privately," Pompeo added via Twitter.

The 44-year-old Grey's Anatomy actress and her music producer hubby kept the baby news a secret from those outside of their circle, much like their New York City wedding back in November 2007. That time, the couple exchanged vows at City Hall in Lower Manhattan where Mayor Michael Bloomberg acted as their witness.