As of late 2005, Biafra was performing with the band The Melvins under the name "Jello Biafra and the Melvins", though fans sometimes refer to them as "The Jelvins". Together they have released two albums, and worked on material for a third collaborative release, much of which was premiered live at two concerts at the Great American Music Hall in San Francisco during an event called Biafra Five-O, commemorating Biafra's 50th birthday, the 30th anniversary of the founding of the Dead Kennedys, and the beginning of legalized same-sex marriage in California. Biafra was also working with a band known as Jello Biafra and the Guantanamo School of Medicine, which included Ralph Spight of Victims Family on guitar and Billy Gould of Faith No More on bass. This group debuted during Biafra Five-O.