Coca-Cola's Sprite brand is inviting you to digitally spray paint a virtual city in a new entertainment campaign on MSN.

"The Wall," lets you choose your canvas - anything from the back of a bus, to a messenger bag, a tunnel, or a person's upper arm. Then you can use the provided stencils, images, text tools and colors to create virtual graffiti artwork!

Once you are finished with your work, you can email it, use it as a background in MSN Messenger, or download it as a wallpaper or screensaver for your computer.

You can visit the mini-site at thewall.msn.com.

You can also visit Sprite and MSN's previous effort at http://music.msn.com/thescenario.