"Who had the worst Super Bowl halftime show? I’m curious because I saw a lot of people say Adam Levine's was the worst but imo Black Eyed Peas was way worse. Thoughts?" One user replied it was ...

Discover why artists and singers perform for free at the Super Bowl halftime show and how this unusual deal makes all the ...

For an artist, performing during halftime of the Super Bowl has become a sign that they ... also came together. In 2011, the Black Eyed Peas were the headlining group, inviting Usher as a guest.