The beautiful Welsh singing star is renowned for her strong, recognisable voice and has found success in the mainstream music charts.
She also made a cameo appearance on British science fiction series Doctor Who at Christmas.
And now Katherine, who regularly performs for UK troops, wants to further her acting career by joining the long line of attractive women who feature in the James Bond franchise.
“I’ve always dreamed about being a Bond girl. I’d like to be an evil one trying to take over the world!” the 30-year-old told the British edition of Closer.
But the singer admits it will be tough to follow in the footsteps of former actresses who have been wowed by the spy, such as Ursula Andress, who starred in Dr No.
However, Katherine says she has a back-up plan which involves a certain Hollywood hunk – because he amazes her. “If I can’t be Ursula, I’d love to be in a musical with Hugh Jackman. I saw him singing in The Boy From Oz and he completely blew me away,” she explained.