Keith Urban won a Grammy, but it wasn’t the only prize he was displaying at the music world’s night of nights.

Urban’s date to the 48th Annual Grammy Awards in Los Angeles was Nicole Kidman.

The formerly publicity-shy Australian lovebirds stepped out together in front of an estimated global TV audience of 650 million and the likes of Madonna, Bono, Gwen Stefani and Kanye West.

For months the country music star from Caboolture in Queensland and the Sydney-raised Oscar winning actress refused to deny they were an item, but they sat snugly together during the awards ceremony.

It was a successful coming out party for Urban, who beat country crooners Willie Nelson and Toby Keith to claim the male country vocal performance Grammy for You’ll Think of Me.

Kidman and Urban have obviously decided they are ready to declare their relationship to the world.

Their first public outing occurred at a pre-Grammy event earlier this week in LA where American musician James Taylor was honoured.

The night was not so good for Australia’s other Grammy nominee, Kylie Minogue, who is battling breast cancer and did not attend the ceremony.

Minogue was nominated in the best dance recording category for her song I Believe in You, but missed out to The Chemical Brothers for their hit Galvanize.