When guests come on screen on the Late Night with Jimmy Fallon show, The Roots always greet them with walk-on music that's often subtle and usually witty. For Larry King, it was Roger Miller's "King of the Road," for Kourtney and Khloe Kardashian it was Meatloaf's "Two Out Of Three Ain't Bad." Depending on your point of view, on Monday night, the Philadelphia band led by drummer Ahmir "?uestlove" Thompson either cleverly outdid itself or overstepped the bounds of acceptable taste while making their political beliefs all too plain in a way that's sure to be making their employers at NBC deeply uncomfortable.