Jordan KnightAmazon. com On his first solo album, former New Kid Jordan Knight turns in a surprisingly stylish record that, though hardly unflawed, makes a convincing case for him as a grownup pop singer in the tradition of George Michael. (Or perhaps that of Robert Palmer, to whom Knight bears a remarkable vocal resemblance. Of course, Palmer hasn't been this with it since the new wave days of Clues.) The R&B stylings of the disc's first few numbers make for its