Colin Powell dances to Naija hip-hop

Colin Powell danced and sang to Olu Maintain's hit Yahoozee

Ex-US Secretary of State Colin Powell has joined a hip-hop band on stage in London to dance and sing in a celebration of African culture.

America's former top diplomat took centre stage along with Nigerian performer Olu Maintain, who sang his hit Yahoozee.

Mr Powell told the audience his own black identity mattered as much as ever and that Africa, with hard work and foreign investment, could prosper like Asia and Eastern Europe.

"I stand before you tonight as an African-American," Mr Powell said.

"Many people have said to me you became secretary of state of the USA, is it still necessary to say that you are an African-American or that you are black, and I say, yes, so that we can remind our children.

"Asia is expanding, it created jobs for people, and Eastern Europeans are doing the same... it's now Africa's turn."