Rumer Willis at 'Declare Yourself' event held at the Wallis Annenberg Center for the Performing Arts. Beverly Hills, California - 27.09.07

The 19-year-old has been wearing a blonde wig for her role in new movie I Know What Boys Like and enjoyed her look so much she decided to go blonde for real.

She says, "I came home and my parents were really shocked when I walked in the house. My sisters looked at me like, 'What? Your hair!' "But everyone, my parents, loved it."

Source: WENN