In its biography of Cows, Allmusic credits Selberg's "squealing, shrieking, and general lunacy" as "the bizarre, often engaging, focus" of the band. He is known for his "legendary" antics on stage, described by the Detroit Metro Times as a "demented roadside attraction". His onstage behavior has included performing naked except for strategically placed shaving cream, performing with mousetraps "dangling from his ears", wearing a business suit with stuffed animals at the crotch and a skin suit made from a love doll. In a 1992 review, The New York Times assessed Selberg's stage wear as a visual counterpart to the music of his then band, Cows, "merging defiance, pain and dark comedy". Selberg's general presentation with Cows was described as a mingling of "requisite menace and a disarmingly arch, lowbrow wit..., leveling both barrels at the oozing backalley/trailerpark underbelly of life."