Keith Urban and a pregnant Nicole Kidman arrive at the 43rd Annual Academy of Country Music Awards in May. The Oscar winner had a baby girl on Monday. (Isaac Brekken/Associated Press)

Oscar winner Nicole Kidman gave birth to a girl in Nashville on Monday morning, according to a publicist for her husband, country singer Keith Urban.

The couple named her Sunday Rose Kidman Urban.

"Nicole and Keith Urban are delighted to announce that Nicole Kidman gave birth to a baby girl on Monday morning, July 7, 2008," the publicist said in a statement.

Sunday Rose weighed six pounds, 7½ ounces at birth, and mother and daughter were doing well, the publicist said.

"We want to thank everybody that has kept us in their thoughts and prayers," Urban said in a posting on his website later in the day.

"We feel very blessed and grateful that we can share this joy with you today," said the New Zealand-born singer.

Kidman, star of The Golden Compass and Baz Luhrmann's upcoming big budget epic Australia, has two older children.

With her former husband Tom Cruise, she adopted two children — Isabella, now 15, and Connor, 12.

The actress, who won an Academy Award for portraying writer Virginia Woolf in The Hours (2002), withdrew from the shoot of Stephen Daldry's drama The Reader because of her pregnancy.

Kidman and Urban married in Australia, where both have roots, in June 2006.

With files from the Associated Press