Our school didn't get to go to grad night. Apparently during my freshmen or sophmore year someone from our school was caught stealing some clothes and our school was banned for a few years.
Actually, the even crappier part was that our school was off the ban-list by our senior year, but our administrative staff decided to continue punishing us for someone else's mistake (or you could read between the lines and realize they were just being cheap).
Well, we got them in the end....senior pranks were to the extreme that year. Heh, we even managed to screw up the first day of finals. That'll teach them to take away my disneyland
I went in 2003 and I have no idea - I don't remember any live bands but that may just be because I was too busy going on rides all night to pay attention. Looks like other people who have graduated in recent years only remember DJs, too, though. I tended to avoid any area where people were dancing - doing anything but going on rides held no interest for me that night.
Went in 1995 and the majority of the music was from DJ's. However, we saw this band which sounded cool but, well, I wasn't at Disneyland to listen to bands. (Some little ride called Indiana Jones or something like that had captivated my attention) Anyways, so my friends and I just shrugged and moved on.
A few months later I saw this album cover and recognized the lead singer, and it turns out the band was No Doubt. My 2.5 cents.