For this week's [turl=http://www.greendayauthority.com/news/tags/throwback-thursday/]#ThrowbackThursday[/turl] we're bringing you back to June of 1991 where Green Day performed at someone's graduation party. You can read a little bit more about the performance below:
[quotefull]Some of my friends managed to get Green Day to play at my graduation party in 1991. Unfortunately one of the opening bands broke the PA so we had to try to find a replacement quickly. While we were waiting for the new PA, Green Day performed this stripped down version of Knowledge to pass the time. By the time the new PA showed up it was dark and late and the cops shut it down after only a couple songs. Still an awesome, unforgettable night. Enjoy[/quotefull]

You can watch Green Day's whole performance at the party here, but unfortunately the rest of the show's quality isn't too amazing. But wow, what a story that person has to tell now!