In honor of this week's excellent keynote announcement we've decided to have a little fun. Shepard Fairey's artwork has a global reach and shows up in the most unlikely places. Photograph some of Shepard's street art near you for a chance to win a badge to SXSW Eco and see his keynote, among other excellent speakers and sessions. Upload your pic to Instagram and tag it #sxswecoSF. The competition goes until next Friday, September 13. That's it. Good luck, happy snapping and OBEY!