Mr. Bungle is an American experimental rock band formed in Eureka, California, in 1985. Having gone through many incarnations throughout its career, the band is best known for its experimental rock period. During this time, it developed a highly eclectic style, cycling through several musical genres, often within the course of a single song, including heavy metal, avant-garde jazz, ska, disco, and funk, further enhanced by lead vocalist Mike Patton's versatile singing style. This period also saw the band utilizing unconventional song structures and samples; playing a wide array of instruments; dressing up in masks, jumpsuits, and other costumes; and performing a diverse selection of cover songs during live performances.

Michael Allan Patton is an American singer, songwriter, producer, and voice actor, best known as the lead vocalist of the American rock bands Faith No More and Mr. Bungle. Noted for his vocal proficiency, diverse singing techniques, wide range of projects, style-transcending influences, eccentric public image and contempt for the music industry, Patton has earned critical praise and influenced many contemporary singers. In addition to his most popular endeavor, Faith No More, Patton is also co-founder and lead vocalist of Mr. Bungle, and he has fronted and/or played with Tomahawk, The Dillinger Escape Plan, Fantômas, Moonchild Trio, Kaada/Patton, Dead Cross, Lovage, Mondo Cane, the X-ecutioners, and Peeping Tom. Consistent collaborators through his varied career include avant-garde jazz saxophonist John Zorn, hip hop producer Dan the Automator and classical violinist Eyvind Kang.