Chicago- 25 or 6 to 4 -LIVE (1970)

*PLEASE READ FIRST* The audio on this returns to 100% around the 1 minute 20 second mark. They had some technical difficulties at the start. Sorry about that. This is truly a YouTube *exclusive*. I've been saving this one for a personal milestone. This is my personal gift to you all who have sent messages and left so many kind words on the video comments page and the many Chicago message boards. I've enjoyed doing this for you all. Now, enjoy a truly rare and unseen performance of the boys from the "Windy City". Thanks!