Rihanna is going to sing for Barack Obama on Inauguration Day.

The Umbrella star will headline the Recording Industry Association of America's charity ball in Washington, DC, to benefit Feeding America on January 20.

"We are thrilled to have Rihanna's participation in the inauguration charity ball," Feeding America's Vicky Escarra told Access Hollywood.

"As the prevalence of hunger in America increases at an unprecedented rate, we are most grateful to Rihanna and to RIAA for helping us bring greater visibility to this tragic reality and helping us feed millions more people in need."

The Grammy-winning singer will be one of many Hollywood A-listers descending onto the Capitol to celebrate with the US president-elect on his big day - others include Will Smith, Sting, Bruce Springsteen, Eric Benet, Anne Hathaway and Susan Sarandon.

Mon 22 Dec