Nicole Kidman is reportedly set to wed rock star Keith Urban.

The smitten pair have set a date in March for the nuptials – and the stunning actress is said to be ‘thrilled’ to be tying the knot again.

Nicole, who has been spotted sporting a huge diamond ring in recent weeks, has told friends and family to set the day aside for the secret ceremony.

A source is quoted in Britain’s The Sun newspaper as saying: ‘Nicole is getting married in March. She’s the happiest she’s ever been in her life and doesn’t want a long engagement.

‘Keith proposed at Christmas and she was thrilled. They’re happy and in love.’

Nicole, who was previously married to Hollywood star Tom Cruise, wants to keep her big day low-key.

The source added: ‘Nicole is only inviting close friends and family – she doesn’t want a media circus.’

“She’s quite simply extremely happy and just wants to be married to Keith. Their parents met and got along and Nicole’s buzzing with excitement.”

The pair, who are both 38, have yet to decide on a wedding venue but are said to be considering tying the knot in Nicole’s native Australia.