An exclusive clip of Chicago performing “25 or 6 to 4" from Guitar Center Sessions presented by JBL with host Nic Harcourt. See an all-new episode on January 8th at 9pm on DIRECTV AUDIENCE (channel 239).Check out Chicago’s latest album “NOW (XXXVI)"Amazon: http://amzn.to/1NTmZ5hiTunes: http://apple.co/1jmKPy1To see more Guitar Center Sessions exclusive clips and other episodes visit: http://www.GuitarCenter.com...