The Sun has put David Cameron on its front page in imitation of Shepard Fairey's famous and much-reproduced Barack Obama Hope poster. Since its debut, the poster's quasi-religious iconography and stylised colouring has evolved into a culture meme, being parodied by many – including Obama's rivals, opponents of the BNP, the makers of In the Loop and fans of The Wire.
What is so striking and iconic about the poster? And is there anyone left you'd like to see get the Fairey poster treatment? Or has its use now passed beyond cliche and into the realm of self-parody?