Gleekus

One option: the band's gameday rehearsal in the stadium is open to the public (usually draws between a handful and a couple hundred spectators, mostly family and friends or band alumni). It typically begins around 5 hours before kickoff and runs for about 2 hours, depending on the time of the game. You can enter through a gate in the southwest corner. You won't be able to get onto the field, but you can walk around some parts of the stadium a bit as long as you stay out of trouble.