Kristen Stewart wants to shave and tattoo her head.

The “On the Road” actress has to keep her long brunette locks for parts in movies, but if she had her way she'd sport lots of crazy hairstyles and colours and has vowed to cut it all off one day.

She told website IntoTheGloss.com: "If I wasn't an actor, I would definitely do things to my hair. I would cut it more, I would dye it more. At some point I want to do a total boy cut, completely -- not a pretty, girly version -- like a straight up James Dean haircut.

"And then, I'm definitely going to shave my head before I die. I will definitely tattoo my head while it's shaved before my hair grows back. I'm not sure which part, probably the bottom quadrant in the back. I don't know what the tattoo would be, yet. Still thinking."

The 23-year-old actress added she doesn't care whether people like her image, as worrying about other people's opinions can only hinder her art.

She added: "As long as I feel solid about my creative choices, people can have whatever image or perception of me that they'd like.

"You can't think that someone's impression of you is wrong -- it's their impression -- and, therefore, you really can't worry about it.

"So many people have developed their impressions based on f***ing bull***t, and you'll never do anything true to yourself, you'll never make the art you want to make."