I happened to be wearing my Obey Propaganda Industries t-shirt one day, and a random guy on the subway asked me if I was going to the opening that night: turns out Shepard Fairey was having a show! I didn't make it to the opening, but the exhibit itself was amazing. The "studio" versions of his posters have many more layers and are incredibly detailed.

His stuff was omnipresent all over town. There was even a classic "Andre" sticker on the trash can next to the boarding gate for my flight home.