The Post Graffiti SHOW Reception. The Post Graffiti Show Reception @ the Columbia Museum of Art went well. 400 people came out to the event that highlighted the wall painting done by Izms' own Cedric Umoja and Mike Krajewski. Chris Wenner was on the wheels while Tribe SK held down the dance floor and did a nice tribute to the late great MC GURU of Gangstarr. CLICK HERE TO SLIDESHOW