Kevin Michael "GG" Allin was a punk rock singer-songwriter and musician who performed and recorded with many groups during his career.
Allin is best remembered for his notorious live performances that typically featured wildly transgressive acts such as Allin defecating and urinating onstage, rolling in feces and often consuming excrement, committing self-injury, performing naked, taunting people to perform fellatio on him, and committing violent actions toward the audience—often doing many of these things more or less simultaneously. Although more notorious for his stage antics than for his wide body of music, he recorded prolifically, not only in the punk rock genre, but also in spoken word, country and Rolling Stones-influenced rock. Though he has a small, devoted cult following, Allin's music, often poorly recorded, has received mostly negative reviews from critics.