Nicole Kidman has insisted that she and husband Keith Urban will not perform together again, reports claim. The pair unveiled an unexpected duet, shocking an audience in LA last week, according to Showbiz Spy.

“We decided to do that little turn for our friend Simon Baker,” Kidman revealed.

The 42-year-old has already shown her singing talents in movies Moulin Rouge and Nine.

She added: “We worked on it for about a week at home in the evenings. It was our first collaboration and probably our last. If we’re just at home and you’re playing music and hanging out then I’m fine. If it’s professional then I get nervous. I need to be loosened up.”