Wealthy Madison Avenue holiday shoppers were greeted Saturday afternoon by boisterous music and dancing, as 60 New Yorkers protested in a growing campaign to boycott Israeli diamond magnate Lev Leviev over his settlement construction in the Israeli-occupied West Bank. Participants performed a joyous dabke, a traditional Palestinian dance, and chanted to music from the eight-piece Rude Mechanical Orchestra. During the protest, Harvard professor Alan Dershowitz entered LEVIEV New York and emerged to jeers as he displayed a LEVIEV shopping bag to the crowd.