Celebrities are used to being in the limelight, but this week they are being charged with causing an absolute stir. They must create a publicity stunt that promotes Mark Bouris's company, Yellow Brick Road. The ideas are extreme, and from overnight sleep outs to getting naked for charity, the celebrities will stop at nothing.

The celebrities have to create a broadsheet print advertisement to launch the new BMW 3 Series. They then have the task of pitching the final product to a panel of executives.