Colin Powell, center, dances onstage with Nigerian hip-hop artist Olu Maintain
 
Colin Powell, center, dances onstage with Nigerian hip-hop artist Olu Maintain at the Africa Rising Festival at the Royal Albert Hall Tuesday Oct. 14, 2008.

The retired General and former U.S. Secretary of State is the key speaker in the final leg of the international Africa Rising Festival, which has been to Nigeria, Washington and now in London.