For the weekend, a guilty pleasure.
Inspired by hearing Bob Dylan's Blowin' in the Wind in 1963, gospel/soul singer Sam Cooke sat down and wrote A Change Is Gonna Come.
Fast forward to Chicago, November 2008.
Towards the end of Barack Obama's presidential acceptance speech, Obama declares: "It's been a long time coming, but tonight . . . change has come to America."
For your listening pleasure, the sprightly Jamaican ska version by the peerless Prince Buster: