Keith Urban and Nicole Kidman
03/31/2009 at 12:00 PM EDT
Sunday Rose may have been born on a Monday,
but Keith Urban
says his daughter's name has a bittersweet meaning.
"Particularly when you don't have someone in your life ... in my experience, Sunday was the loneliest day," Urban, 41, tells Ellen DeGeneres
on an episode of her talk show
set to air Wednesday. "It went from being sort of the most dreaded day of the week for us to being the most joyous day, because we just had a family."
Although Urban and his wife Nicole Kidman
are Aussies, the country musician says their nearly 9-month-old daughter – who is being raised largely in the couple's adopted hometown of Nashville – might just develop a unique twang.
He tells DeGeneres, "I think she may say, 'Good day, ya'll.' A nice mix."