This is something that I have been into for a while.  There are tons of these videos out there, and it is very difficult to pin down specific artists, but I thought I would share one of my favorite spray paint artist videos with you.  It was uploaded by spacepainter on youtube over 4 years ago, but I watch it every couple of months and I am still amazed.

[youtube]dY1Lr-yGtd8[/youtube]

Let me know what you think in the comments section.  This is not a new phenomenon by any means, but it is something that is pretty much always fun to watch.