Sienna sings: The mum-to-be has teamed up with rising musician Jack Savoretti on a duet. Photo:Getty
According to the Sunday Mirror, "Jack met Sienna at the Groucho Club (in London) and she sang These Boots Are Made For Walkin'.
She adores singing so jumped at the chance to sing with him when he asked her to."
And actually, we reckon she's pretty good (in a soft, girlie, whispery kind of way.) Feast your ears on this:
See our Perfect 10 Sienna Miller moments here:
- November 2011<p> Sienna Miller at the 2011 International Medical Corps Gala.</p>

- September 2011<p> Sienna at the Moet & Chandon Etoile Awards party at the Park Lane Hotel in London.</p>

- September 2011<p> Sienna Miller arriving for the Burberry Catwalk show during London Fashion Week.</p>

- October 2010<p> Sienna Miller at the Unesco Charity Gala 2010.</p>

- October 2010<p> Host Sienna Miller at the Grand Opening Of Esquire House LA with International Medical Corps Benefit.</p>

- October 2010<p> Host Sienna Miller arrives at Colin McDowell's book launch party at Somerset House in London.</p>

- October 2010<p> Sienna Miller arriving at the 2010 Metropolitan Museum of Art Costume Institute Benefit.</p>

- <p> Sienna Miller during a special screening of the new movie from Paramount Pictures <em>G.I. Joe: The Rise of Cobra. </em></p>

- July 2009<p> British actress Sienna Miller poses for photographers during the Japan premiere of her latest film <em>G.I. Joe:The Rise of Cobra</em>.</p>

- May 2009<p> Sienna Miller attends the 18th Annual MTV Movie Awards.</p>

