In 2009, Japanese artist Yoshitomo Nara was hanging out with his business manager Tim Blum in the Manhattan bar Niagrara. Nara pulled out a marker and drew some of his fantastic figures on the walls. (Later that night, he did the same thing at a subway station and was promptly arrested.) Last week, one of Nara's paintings sold in a Sotheby's auction for $24.9 million, driving up the value of his other work including this graffiti.