Trevor Roy Dunn is an American composer, bass guitarist, and double bassist. He came to prominence in the 1990s with the experimental band Mr. Bungle. While performing with Mr. Bungle, Dunn would dress similar to the St. Pauli Girl. He has since worked in an array of musical styles, including with saxophonist/composer John Zorn, Secret Chiefs 3 and with his own avant-garde jazz/rock ensemble Trevor Dunn's Trio-Convulsant. He is also a member of the band Tomahawk.

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.