Keith Urban Gives BEST Answer When Asked If He Prefers Marilyn Monroe or Grace Kelly

(Photo: Christopher Polk)

Keith Urban is one smart man.

When asked on the red carpet at the Screen Actors Guild Awards, Saturday, if he had to choose between iconic actresses Grace Kelly and Marilyn Monroe, Urban told E! that he'd pick his wife, Nicole Kidman.

"You can't choose me," Kidman, the mother of his daughters, Faith, 5, and Sunday Rose, 7, said. "It's Marilyn or Grace."

Kidman was nominated for outstanding performance by a female actor in a television movie or miniseries for her role as Kelly in the Lifetime movie Grace of Monaco.

"I met a lot of people, not a lot of people who knew her, but a number of people, and I also just studied her. My mom adored her, so my whole life, it was always Grace Kelly," Kidman said.