Blu has made a name for himself making some truly gorgeous graffiti projects that play with time and location. Here is one of the ones that introduced me to him.
Here too is a collaboration with JR.
dvd available at: http://www.zooo.org/shop/index.php/artists/blu.html a huge wall made by Blu and JR in Berlin July 2007 for the Planet Prozess project see the final work here: http://blublu.org/sito/walls/2007/009.html http://www.blublu.org http://www.jr-art.net http://www.urbangrassroots.net