Taylor Swift's pre-Super Bowl concert broke some news: She announced it may be her only concert of this year; she sang her newest single live for the first time, as she stood before the smallest number of fans in some time ? 9,000 people is intimate for Swift. She also made some references to football during the 90-minute show, telling the crowd about her early country-turned-pop hit, "You Belong With Me," with lyrics about high school cheerleaders, bleachers and boys.