I don't go to a lot of concerts, but I'm a big fan of Spearhead and I found out that they'd be playing at the Crystal Ballroom. I can't even begin to describe it. They were/are incredible. It's refreshing to see a band that actually seems to care about what's going on in the world. If you're looking for something different, musically, pick up "Stay Human", by Michael Franti and Spearhead. Fair warning, though: this is a "political" album. It's anti-death penalty and sounds like a pirate radio broadcast with the songs being interrupted by the "announcers", including some interesting "interviews".
Incidentally, if you recognize the voice of the Governor on the album, that's because it's Woody Harrelson. If you really want a trip, find out who Harrelson's father is. I'll leave it at that.