At the beginning of Monday's post-Democratic convention Late Show, Stephen Colbert took a bite of a Philly cheesecake he pretended to have found on the street of Philadelphia, and then things got strange. Colbert, dressed in hippy-faux tribal-rainbow pants attire, popped up behind what appeared to be the cast of a Hair revival to sing a raga-trance song called "Death, Taxes, and Hillary." A sample: "It's a cheesesteak jamboree, where your mind can be set free / And this power girl will change the world, if her donors all agree." The costumes mix late '60s and early 1970s counterculture and disco, the music is highly reminiscent of the Beatles' Maharishi period, and the animation is Yellow Submarine mixed with your most psychedelic screen saver.