JR

I saw the French photographer JR's images for the first time last summer at the Arles photography festival, where his huge black and white portraits were displayed in an abandoned warehouse. His images are aimed at provoking stereotypes.
As he says.. "The photos have a lot of messages. But the main one is: 'Look at me, I exist, I'm larger than life.'"
The image above is currently on the facade of Tate Modern in London as part of an exhibition of Street Art. If you're in London go and take a look before it peels completely off the building..
Check out this video of it.