With Cee Lo Greens new hit "Fuck You" now a radio staple and guaranteed to be playing at your favorite club.  Umphrey's Mcgee decided to pay homage to Greens phenomenon at the North Coast music festival in Chicago.  Umphrey's has been known to preform other rap covers in the past, but this may be their best to date.  This video starts with the boys in the dressing room and switches right in to the live performance.  If you are at work, consider headphones.