The singer released footage of her performance of 'Gold in the Hills', which features on her forthcoming covers LP, on YouTube.
Melua is seen getting ready for a show in Germany in the clip, before accepting flowers and signing autographs for fans.
Secret Symphony marks the star's fifth album following 2010's The House, which peaked at number four and spawned six singles including 'The Flood'.
Melua recently described her latest opus - which is released on March 5 - as a "singer's album", adding: "I had always wanted to do this one day; singing other people's songs brings something out of you and your voice that isn't perhaps where you would have gone vocally with your own material."
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Listen to Katie Melua sing 'Gold in the Hills' below: