PRIVATE SYDNEY

Keith Urban and Nicole Kidman at the party.

Keith Urban and Nicole Kidman at the party. Photo: Supplied

There are plenty of wedding anniversary parties held at Middle Head's The Gunnery, but it's not every day a Grammy winner performs, not to mention an Oscar winner on the guest list.

Nicole Kidman and her husband, country music star Keith Urban, were the headline attractions at the golden anniversary party marking five decades of marriage for Kidman's parents, clinical psychologist Dr Antony Kidman and former nurse Janelle.

Guests arrived at the venue at lunchtime on Sunday for what was a low-key event for just family and close friends.

Antonia Kidman at the party.

Antonia Kidman at the party. Photo: Supplied

Kidman arrived wearing a cream summer dress while daughters Sunday Rose and Faith opted for more traditional party wear – bright colours and sparkles.

Urban provided entertainment for the gathering, singing for his in-laws in a room festooned with huge bunches of hydrangeas in full bloom.

The celebrations wrapped up by 4pm, with guests told to be out the door so cleaners could go through in preparation for another booking that night, with several grabbing the flowers on the way out.