The Sunreports that Barack Obama has asked Joss Stone to write a theme song for his campaign.
Democrat candidate Mr Obama approached her personally because he was impressed by her appeal to both black and white voters in America.
A source said: "Joss is a big supporter of Barack Obama and was very excited to be asked to do this for him.
"He sent a personal message asking her to get on board.
"He has always admired her music and thinks she is the perfect choice because of her unique appeal to black and white voters.
"She believes he is going to be the first black American president and she is honoured to be a part of that."
Joss is a household name in the US, where she spends up to nine months a year.
Vibe confirms the story in The Sun. Alicia Keys and Jay-Z have also written songs for Obama reports The Sun. Ludacris wrote a rap for Senator Obama but Barack Obama denounced it. Will.i.am also made a couple songs including "We Are the Ones" supporting Obama during the primaries.