Nicole Kidman couldn’t have looked better or had a nicer time at the 52nd annual Grammy Awards.

The Oscar-winning actress is also Mrs. Keith Urban, wife of the very much about to be country music — and maybe pop music — superstar. In the private club backstage at the Staples Center, known as the Chairman’s Room, Nicole and Keith met and mingled with other stars and music execs, dined on buffet short ribs and plates of dessert and fruit.

“It’s so nice to hang out this way,� Nicole said, as she chatted with CBS’ Les Moonves and Julie Chen. She and Keith met Frank DiLeo, Michael Jackson’s famed manager. They talked about music and kids. Nicole is back to being a redhead. She also looked phenomenal. For all the wags who’ve complained that she’s been overly Botoxed or something, I am happy to tell you: Nicole looked just like Nicole Kidman, just beautiful. And she ate like a regular gal.

“You’ve got to try this beef,� she told me, while sampling from a plate. “It’s delicious.�

Nicole also told me there’s a chance she won’t be at the Academy Awards on March 7. “It’s my mom’s 70th birthday, so we may be with her. We love mom!� And yes, Kidman’s mother is one of the nicest people we’ve ever met at premieres or red carpets, so it’s understandable. Nicole also talked about her kids, all three of them, and Keith. “Can you tell him how good you think he is,� Kidman asked. “I’m always telling him.�

I’ll tell you about Keith Urban. He’s a rising superstar. Like Rob Thomas, John Mayer, John Legend and a few others, he’s in the next generation of rock stars. He’s also incredibly humble and devoted to Kidman. He doesn’t know I saw this, but while we were talking and eating, and while Nicole had gone to fetch a plate of desserts, a woman came up and tried hitting on Urban very aggressively.

“Can’t I do that?� she said. It was so rock-and-roll.

Urban stood from the stool he’d been sitting on, and went cold.

“No you may not,� he declared, upbraiding the stranger. “I am married!�

He’s a keeper.