Stewart joined the band Marilyn Manson & the Spooky Kids in 1989. The band eventually gained the attention of Trent Reznor who signed them to his label Nothing Records. As the band became more famous after dropping the "Spooky Kids" title in 1992, Gein's personality was becoming more chaotic through extensive drug use and other various acts of debauchery. In October 1993, Reznor agreed to rework the production on Marilyn Manson's album, taking them and their tapes to The Record Plant in Los Angeles. On Christmas Eve of 1993, Gein was hospitalized after overdosing on heroin. While still hospitalized, he received a message from Marilyn Manson's lawyer via FedEx that he was fired due to his drug use. Gein was replaced by Jeordie White, known as Twiggy Ramirez.