Calling it now: "OMG" is the perfect set opener. It uses so much Auto-Tune (courtesy of will.i.am, another potential name on the guest list) that it will allow Usher to ease into his vocals ...

where the "OMG" singer is slated as the headlining act. Furthermore, 17 additional shows were added to the tour, extending it in cities like D.C., Brooklyn, Inglewood and Atlanta. Usher's reign in ...

But with less than 15 minutes available for the Super Bowl halftime performance, Usher kept things moving. As he performed "U ...