It was the most off-the-wall job a Brooklyn tailor-to-the-stars had ever gotten. Bushwick's Martin Greenfield has fitted Paul Newman and Bill Clinton - but it didn't prepare him for working for Michael Jackson. It was a cloak-and-dagger operation. Greenfield, 80, wasn't allowed to meet the King of Pop. Handlers explained, "Michael doesn't do Brooklyn." He couldn't get measurements, had to use Jackson's stylist as a stand-in and had to work from headless photos of the star.