What exactly are street art and graffiti? For the graffiti artist, the goal is to "tag" or write their name, on the most places. Extra respect goes to those who get their tag on hard-to-reach spots, like billboards and the tops of high buildings. "If there are two graffiti artists, they will compete for fame. They might never meet, but they compete because they see each others names so much," said graffiti artist BG 183 of Tats Cru, a group of Bronx-based professional muralists.