"The Mystic Knights of the Oingo Boingo" was a performance art troupe formed in the late 1970s in California. The group was created by Danny Elfman, who later became famous as a film composer. They combined music, theater, and elaborate costumes to create a unique and surreal experience, often drawing inspiration from various cultures and styles. The troupe eventually evolved into the band Oingo Boingo, which gained popularity in the 1980s and 1990s. Their music featured a mix of rock, ska, and new wave, with Elfman as the lead vocalist. The band's energetic performances and eclectic sound contributed to their cult following.