Nicole Kidman helped her parents celebrate their 50th wedding anniversary by throwing a party for them in Sydney, Australia on Sunday (22Dec13).

The Hollywood actress was among the guests at the bash, along with her country singer husband Keith Urban, to celebrate Anthony and Janelle Kidman's golden anniversary.

The party took place at the city's Middle Harbour Yacht Club.

Kidman and her family are expected to remain in Sydney for Christmas (13).