Cyrus pens biography at 15

Updated 06.34 Thu Apr 24 2008

Miley Cyrus, the star of Disney Channel's TV show Hannah Montana, is to write her autobiography at the tender age of 15.

Cyrus who is still not even old enough to legally smoke or drink has been given a seven figure sum by the group.

The singer and actress says she hopes it inspires her fans to believe their dreams

It'll focus on her road to fame, growing up in Tennessee and how her musician dad Billy Ray - famous for his song Achy Breaky Heart - and mum Letitcia keep her feet on the ground.

The autobiography will also feature some embarassing childhood pictures, which no celebrity book would be without.

The singer and actress says she hopes it inspires her fans to believe their dreams.

She follows in the tradition of stars Katie Price, Jodie Marsh, Lewis Hamilton, Heather Mills and Russell brand who all wrote autobiographies in their 20s and 30s respectively.

Disney plans to launch the autobiography in spring 2009 to tie in with the release of her new movie.

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