Miley Cyrus [Photo/Agencies]

Miley Cyrus suffering from stomach flu

Miley Cyrus ends fling with Kellan Lutz

The 'Wrecking Ball' singer - who shot to fame aged 12 after starring in Disney TV show 'Hannah Montana' - is no longer interested in appearing in movies because she hates having to pretend to be someone else.

She said: "I'm just not passionate about acting, because I don't like to pretend to be somebody I'm actually not.

"Why should I put on strange characters? I prefer to show my true colours as the real Miley Cyrus."

The 21-year-old star also spoke out to demand more "tolerance" in the world and admitted she doesn't understand how discriminatory attitudes are still held in the modern world.

Speaking to Germany's Vogue magazine, she said: "I think a lot about politics. Despite the fact that it's the 21st century and America is so proud of being a free country, sometimes incomprehensible things happen in our society.

"There is racism and discrimination. I fight against that. I demand more tolerance, especially for homosexuals, who of course should be allowed to marry."

Miley went on to encourage people of her age to shed "restrictions" in a quest for "self-fulfillment", though she also acknowledged she is in a different position to most young women.

She said: "I'm not exactly a normal citizen. My profession allows me to run around however I like. Wild outfits or crazy haircuts are not taboo for me. After all, I work in the entertainment business, which I feel is a huge plus, simply because in this profession I can develop freely with no trouble at all.

"I'm also completely convinced that every young person has the right to get free of whatever's restricting them. Which is why I encourage everyone to go for self-fulfillment."