By Frankie Taddeo A massive shift has taken place regarding Super Bowl LVI’s first halftime song, a popular novelty wager for bettors. Both casual and professional sports bettors love having action involving the Super Bowl itself as well as those considered novelty bets. Some of the most fun wagers often involve events such as the length of the National Anthem to the first song being sung during the halftime show. I have been providing a series all week featuring the players/markets that respected money is either fading or backing both in Vegas as well as at SI Sportsbook. We are only days awa…