Urban and Kidman married in Sydney in June 2006
Oscar-winning actress Nicole Kidman has given birth to a baby girl called Sunday Rose and both are doing well, her spokesman has said.
He said Kidman, 41, and her husband, country singer Keith Urban, 40, were "delighted" to announce the birth.
Sunday Rose weighed 6lb 7.5oz and was born in Nashville, Tennessee.
She is the first child the actress has given birth to. She has two adopted children, Connor and Isabella, with former husband actor Tom Cruise.
Kidman won her Academy Award in 2003 for The Hours. She will next be seen in wartime movie Australia, with Moulin Rouge! director Baz Luhrmann and X-Men star Hugh Jackman.
She married Grammy-winning singer Urban in a Sydney ceremony in June 2006.
Urban spoke last January of the challenges of entering a rehab clinic for alcohol addiction.
He said it was a bigger challenge than he expected but that his life had become "unmanageable".
Kidman said afterwards: "I've learned an enormous amount having a relationship with someone who is in recovery."
Cruise is now married to Dawson's Creek star Katie Holmes, who gave birth to their first child, daughter Suri, in April 2006.