Miley Cyrus breaks ex's heart

Miley Cyrus's new romance with Liam Hemsworth has left his ex-girlfriend devastated.

The Hannah Montana starlet - who has been dating the former Neighbours actor since they grew close on the set of their new movie The Last Song - has left Australian student Laura Griffin heartbroken by taking her "boyfriend and best friend".

The 19 year old wrote on her Facebook web page: "Liam and I have been inseparable since school. But it's Miley Cyrus. How can I compete?"

Laura blamed the Hannah Montana actress for the breakdown of her relationship with Liam and said the pair would still be together if it wasn't for Miley.