Nicole Kidman and Keith Urban have become the proud parents of a baby girl.

The couple - who already have a two-year-old daughter, Sunday Rose, together - welcomed Faith Margaret Kidman Urban into the world on December 28 last year at The Women's Hospital at Centennial in Nashville, USA. The tot was born through a gestational carrier and is the biological daughter of both Nicole and Keith.

They said in a statement: "Our family is truly blessed, and just so thankful, to have been given the gift of baby Faith Margaret. No words can adequately convey the incredible gratitude that we feel for everyone who was so supportive throughout this process, in particular our gestational carrier."

The 'Rabbit Hole' actress and the country singer had kept the birth a secret and didn't mention their new arrival when they appeared on the red carpet at Sunday night's (16.01.11) Golden Globe Awards.

The couple, both 43, married in 2006 and were overjoyed when Nicole gave birth to daughter Sunday in July 2008.

Nicole - who has made no secret of her desire to have another child - also has two adopted children, Isabella, 18, and 15-year-old Connor, with ex-husband Tom Cruise.