Consider the Super Bowl halftime show. Last year, outraged viewers accused Shania Twain of lip-synching her performance (she sang; the instrumentals were canned). But these purists missed a far more intriguing development. According to Paul Liszewski, the project manager for the broadcast's audio operations, one performer's vocals - Liszewski wouldn't say whose - were electronically altered, in real time, to correct off-key notes just as they were coming out of the singer's mouth.How long before the Jewish boy bands start doing this? Some of them need all the help they can get.