Miley Cyrus has finished writing a book detailing her life story - at the tender age of 15.

The actress shot to international stardom in Disney TV series Hannah Montana after landing the role at just 12 years old, and has since pursued a solo singing career.

And now the teenager has completed penning her memoirs, which will take a look back at her life so far.

Publishers Disney have said the star's autobiography will "reveal how her solid relationship with her family, especially her mother Leticia, helps her navigate the spotlight".

And now Cyrus has spoken out about the project, adding: "I'm not sure when it's going to come out. It's finished but you've got a long process of editing and all that kind of stuff, so it takes a while."