Colin Powell unveils political movement

Colin Powell performs with the Nigerian hip-hop group Olu Maintain at the Africa Rising Festival in London Photograph: Yui Mok/Press Association

The Royal Albert Hall had seen nothing like it Photograph: Dave Hogan/Getty

They call it Tuesday night fever (but isn't that suit the wrong colour?) Photograph: Dan Kitwood/Getty

The former secretary of state takes some pointers Photograph: Dave Hogan/Getty

Then he unleashes shock and awe on the dance floor Photograph: Yui Mok/Press Association

Phat's all, folks Photograph: Dave Hogan/Getty

President Bush regularly struts his stuff in public. Here he and the first lady, Laura, dance with members of the Kankouran West African Dance Company in April 2007 in the Rose Garden of the White House during a Malaria Awareness Day event Photograph: Manuel Balce Ceneta/AP

Putting on his blue tie: Bush dances for the cameras in March this year as he awaits the Republican presidential candidate, John McCain, at the White House Photograph: Jim Watson/AFP/Getty

Two Jags, but how many left feet? John Prescott and his wife, Pauline, boogie at a Labour event in Brighton in 1997 Photograph: Ian Waldie/Reuters

Vogue traders: Cherie Blair hand jives with Ian McCartney before Tony Blair's speech at the Labour party conference in 2004 Photograph: Dan Chung/Guardian

Nelson Mandela dances with the Gauteng provincial leader, Tokyo Sexwale (r), in 1996 during the ANC's 84th birthday celebrations in Carltonville, South Africa Photograph: Conus Bodenstein/AP

Dummy moves: Barack Obama dances with a mother and her baby boy during a campaign stop in Waterloo, Iowa, in February 2007 Photograph: Jason Reed/Reuters