GET LIFTEDSix years after cutting his musical teeth as a teen, tickling the ivories on the classic Lauryn Hill single "Everything Is Everything," John Stephens popped up everywhere in 2004, going by the bold name of John Legend. His ubiquity was unsurprising, since he was taken under the wing of Kanye West, the year's breakout success, who tabbed Legend "the future of hip hop." It's an interesting label for a man whose elegant voice and schooled songwriting