ICP, a crew of graffiti artists in the San Francisco area, have tagged up this roof and thanks to the passing photography plane have gained more exposure than they probably expected. My initial worries that the tag was related to the dreadful Insane Clown Posse were thankfully incorrect and I found a nice piece by the crew on Flickr.

The other tag looks to be the work of “tezist”, and the smaller, more stylized tag is just too small to read.

Thanks: Thykka