The British soul singer Joss Stone is recording a theme-song for Barack Obama’s presidential campaign.

Mr Obama is said to have approached the 21-year-old from Devon personally to ask her to write a one-off track, partly because he believes her music has cross-racial appeal.

Stone, who spends up to nine months a year in the US, was said to be “honoured” to have been asked and is now in a recording studio working on the song.

Alicia Keys and Jay-Z have also dedicated songs to Mr Obama in the lead up to his November election battle with the Republican senator John McCain.

Miss Stone is well-known in the US, where her third album, Introducing Joss Stone, debuted at number two in the Billboard album chart - the highest new entry by a British female artist in US chart history.

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