Astral Media Outdoor has just launched a pretty cool contest - Carte Blanche for Creatives, a celebration of creativity in outdoor vertical and transit shelter advertising. The idea? Come up with the best outdoor execution for a brand of your choice for a chance to win a trip to the Cannes International Advertising Festival.

Deadline for submitting creative: April 18, 2010

For more information, go to the Carte Blanche website.