By Chris Rosvoglou The national anthem for Super Bowl 56 was performed by country music star Mickey Guyton. As you’d expect, people around the world were curious as to how long her performance was. Every year, sports fans place prop bets on the national anthem. With that being said, the run time for Guyton’s performance was 1 minute and 51 seconds long. Some sportsbooks had the national anthem listed at 1 minute and 35 seconds. Those who bet the over must be pretty happy right now. There were some people who genuinely tuned into Guyton’s performance just because of their appreciation for the n…