SNL did a handful of these sketches from c. 1998 - c. 2007. Horation Sanz was in at least one, Jason Sudeikis in at least one, and Amy Poehler in at least one WITH Jason Sudeikis. The premise was that it was a commercial for an upcoming music/art fest, a la Lollapalooza, but ten times more random and absurd. Like, the bands had the most random names. Over here on Stage One were the headliners Anal Ulcers, Perfidy, and Your Mom’s Vulva. On Stage Two are the Vengeful Turks, Oscar The Grouch Is My Dad, and Ridin’ the Mustache. At 3:00 pm will be a guided meditation by Eckhard Tolle. And making a special appearance is the Ghost of Spudz McKenzie. And so on.
Does this ring a bell for anyone?