Punk singer John Lydon, better known by his Sex Pistols moniker Johnny Rotten, urged fans at a Public Image Ltd., concert in Brooklyn last night to spit on Sarah Palin and what he called "Tea Party chimpanzees."The group was playing the finale of their first U.S. tour in almost twenty years at the Music Hall of Williamsburg when Lydon was spat on by a fan reliving the early days of punk when spitting on the band was (briefly) considered a sign of support.According to Spinner, Lydon became angry when a lunger landed on his cheek. A few songs after threatening...