I went to a Tool concert (they were a heavy rock band) in the mid 90′s with my sister! The opening band was a couple of overweight balding guys playing folky rock guitar music. I didn’t know who they were at the time, but apparently I was in the minority of those who were enjoying their music. Because midway through the first song most of the crowd was booing and chanting “Tool, Tool, Tool”. They persevered and played at least 4 or 5 songs though the taunting.
Then the main act Tool came on stage, of course their was a loud cheer from the crowd. They had succeeded in getting their band on the stage sooner! Then the lead singer steps up to the mic and proceeds to chew us out for giving the opening act such a hard time, then they started into sound track of squealing tires and feedback that probably looped for a half hour before someone finally pulled the plug and we all went home.
A few years later, my sister and I went to a concert at the same arena to see this great new band fun rock band. I had one of their albums and really enjoyed their music. So, they get up on stage and say “So, the last time we were here, you guys didn’t give us such a warm welcome.” Then it hit me… the Tool concert crowd had booed Jack Black’s Tenacious D off the stage!
I have to admit as much as I enjoyed their music, silly rock is an odd choice for an opening band for a heavy rock concert. 
