The 'Boy Who Murdered Love' hitmaker – who appeared as the lead role in the West End show 'Little Voice' when she finished competing on Simon Cowell's pop star search show 'The X Factor' – has ambitions to break into movies and would "love" to star on the big screen.
She told BANG Showbiz: "I would love to do a Hollywood film! Singing is my main priority and it's my main, main passion, but in years to come I would jump at the chance of doing that, yeah."
However, the 18-year-old blonde beauty accepts she has little chance of focusing on anything else other than her singing career right now.
She said: "'Little Voice' was a fantastic show and the cast was incredible. I was just so grateful to be in such a great production. I don't want to hear about any offers at the moment, though, because music is kind of my main thing."
Diana's new single 'The Boy Who Murdered Love' is available to download on July 19 – her album 'Songs From The Tainted Cherry Tree' is out now.