Jeff Hatrix, also known as Jeffrey Nothing, is an American musician, best known as the former clean vocalist for the heavy metal band Mushroomhead. His nickname comes from a scene in Blue Velvet. With a wide variety of face paint and mask designs, Jeffrey's most known look is that of a butcher. However, he revealed a new look in the music video of "Your Soul Is Mine", showing a tan skin mask that somewhat resembles the infamous Leatherface from the Texas Chainsaw Massacre movies. Two of his masks were made from face-molds of famous actors Christopher Lloyd and Bela Lugosi. His most recent incarnation is that of a mask resembling human hands. He is signed as a solo artist to Suburban Noize Records.

Mushroomhead is an American heavy metal band from Cleveland, Ohio. Formed in 1993 in the Cleveland Warehouse District, the band is known for their avant-garde sound and horror film-inspired imagery which features masks and costumes as well as their unique live shows usually performed at smaller venues.