Aside from fried food and football, people across the country tune into the Super Bowl for one big reason: the performances. Whether it's the national anthem or the halftime show, the singers who take the stage put on one of the most highly watched spectacles of the year. Beyoncé Knowles is all set to show off her chops this weekend, which is why we're taking a look back at 10 of the most iconic Super Bowl performances . . . and the hair and makeup that went along with them.