Duffy has become the latest singer to be linked to the new James Bond soundtrack.
The Welsh soul star refused to rule out the possibility that she may sing the theme tune to the Quantum Of Solace movie.
When asked about the project, Duffy told BBC 6Music: "Well, a lady never exposes her secrets."
Amy Winehouse, Mark Ronson and Leona Lewis have previously been linked to the theme song.
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