Hannah Montana star Miley Cyrus has pledged her future to the show - insisting she isn't ready to quit.

Reports suggest the 15-year-old had been arriving at the Disney Channel studios late and had been openly talking about wanting to get fired.

It was also claimed Cyrus did not get along with her co-star Emily Osment.

But Cyrus has dismissed the rumours and vows to continue with her Hannah Montana career.

She tells People.com, "I am fully committed to Hannah Montana. It's what gave me this amazing opportunity to reach out to so many people.

"I'm really excited about our new season. We are making great new episodes that I can't wait for our fans to see."