Motörhead performed an invitation-only concert at the Royal Opera

Motörhead performed an invitation-only concert at the Royal Opera House in Covent Garden , London on 22 February 2004; at Summer Festivals in South America during May; and in Europe during June, July and August. They had already spent time in the studio, working on Inferno , which was released on 22 June and followed by the “Inferno” tour of Ireland with Class of Zero for three dates. Joined by Sepultura , the tour hit Great Britain. Some of the London show at the Hammersmith Apollo was filmed for TV as Gene Simmons introduced the extra opening act the Class, made up of school children from his Channel 4 series Rock School . Würzel guested on “Overkill”. The band continued the tour with Sepultura across Europe through the rest of November and December. At the show in Magdeburg , Germany on 4 December Motörhead joined Sepultura on stage during their support slot playing the song “Orgasmatron”, in celebration of Sepultura’s 20th Anniversary. The show on 7 December at the Philipshalle in Düsseldorf was recorded and later released as the Stage Fright DVD.