This is a defining moment in her career..... I think this solidifies her as the Tina Turner/MJ of my generation....nothing will bring Beyonce down but the good Lord himself........so career boost or not she will end up on top!
U2 benifitted from their Super Bowl halftime show, and so did The Black Eyed Peas....I think.
But usually people do them when they already have their careers intact, and when they already reached their peak. You wont see an upstart do a halftime show, and for good reason.
