Actress Katherine Heigl and singer-songwriter Josh Kelley revealed the name of their second adopted child on Wednesday, and today we know more about why they chose to call their baby girl Adalaide Marie Hope Kelley.

"Adalaide because of my great-grandmother, Marie after my middle name, and Hope because that is what the process became," explains Katherine of her newborn daughter.

Adelaide joins her big sister, 3-year-old Naleigh, as the newest addition to the Kelley family. Whereas Naleigh was adopted from South Korea, Adelaide was born in Louisiana -- close to Josh's hometown of Augusta, Ga. See a photo of the whole family in the video player below.

Watch "Heigl Debuts New Daughter" Video

Watch Josh Kelley's 'Naleigh Moon' Video