
A Berlin street artist shopped up a subway ad featuring Britney Spears, Leona Lewis & Christina Aguilera to appear as though the photo was still 'in process' while it undergoes photo shop editing. The piece was photographed by a tourist, who put it on Flickr, where it was seen by a blogger, who blogged it, which is where a blogger saw it and blogged about it and is why you are seeing it here. on a blog.
