International party girl Paris Hilton stepped out with teenage brother Barron at a New York benefit.

The heiress to the multi-billion Hilton hotel fortune brushed up an eye-catching head of hair for the Vanity Fair In Concert celebration.

She was supporting the event for Step Up Women's Network, which raises funds and awareness of women's health and social issues.

Known as Paris the Heiress, she made a name for herself as a party-hopping socialite, works occasionally as a model, and has had a few small film roles.

The socialite was in good company, joined by actress Tori Spelling, rocker Rod Stewart's daughter Kimberly, actor Will Rothhaar and actor Devon Gummersall.

Parents Rick and Kathy Hilton were also on hand to keep their offspring on the straight and narrow.