As an obvious in-joke, the name of the fictional rock band is Exorcist and the episode was directed by William Friedkin whose most popular film is "The Exorcist."
The episode features real-life musicians Heavy D, Gregg Allman and Steve Jones.
The title is a line from the sea shanty "Dead Man's Chest" ("Fifteen Men On A Dead Man's Chest") from Robert Louis Stevenson's novel Treasure Island (1883) and used in pirate stories and movies ever since.